CN104601303A - Transmission method and device and receiving method and device of uplink control information - Google Patents

Transmission method and device and receiving method and device of uplink control information Download PDF

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Publication number
CN104601303A
CN104601303A CN201310538441.2A CN201310538441A CN104601303A CN 104601303 A CN104601303 A CN 104601303A CN 201310538441 A CN201310538441 A CN 201310538441A CN 104601303 A CN104601303 A CN 104601303A
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carrier wave
pusch
tdd
tdd carrier
uci
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CN104601303B (en
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高雪娟
林亚男
沈祖康
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • 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

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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 transmission method and device and a receiving method and device of uplink control information. The transmission method comprises the following steps: determining one PUSCH (Physical Uplink Shared Channel) on a TDD (Time Division Duplex) carrier for transmitting UCI (Uplink Control Information) under the condition that the PUSCH transmission exists on the TDD carrier; generating the UCI and transmitting the UCI through the determined PUSCH transmission. The UCI is transmitted by using the PUSCH transmitted on the TDD carrier, DAI (Downlink Assignment Index) domain indication information for dispatching the PDCCH/EPDCCH (Physical Downlink Control Channel/Enhanced Physical Downlink Control Channel) of the PUSCH in the TDD system can be more effectively utilized, the UCI bit number of FDD (Frequency Division Duplex) and/or the TDD carrier is rationally and effectively controlled, the transmission efficiency is improved, and the problem of occupation of a large amount of signaling overhead by the UCI and adverse effects caused thereby are avoided.

Description

The sending method of ascending control information and device and method of reseptance and device
Technical field
The present invention relates to the communications field, and especially, relate to the sending method of a kind of ascending control information (UCI) and device and method of reseptance and device.
Background technology
(1) duplex mode
Long Term Evolution strengthens (Long Term Evolution-Advance, hereinafter referred to as LTE-A) system supports three kinds of duplex modes: full Frequency Division Duplexing (FDD) (Frequency Division Duplex, hereinafter referred to as FDD), Half-Frequency Division Duplex (Half-duplex FDD, hereinafter referred to as H-FDD) and time division duplex (TimeDivision Duplex, hereinafter referred to as TDD).The essential difference of these three kinds of duplex modes as shown in Figure 1.Wherein, FDD refers to that uplink and downlink transmission is carried out on different carrier wave frequency ranges, and base station and terminal all allow to carry out receiving and sending signal simultaneously, and therefore, FDD equipment needs two cover transceiver and duplexer filters.The difference of H-FDD and FDD is that terminal does not allow to carry out transmission and the reception of signal simultaneously, and namely H-FDD base station is identical with FDD base station, but the relative FDD terminal of the terminal of H-FDD can simplify, and only retains a set of transceiver and saves the cost of duplexer.In addition, TDD refers to that uplink and downlink transmission is carried out on identical carrier wave frequency range, and base station/terminal carries out sending/receiving or the reception/transmission of channel in the different time.The base station of TDD and terminal all only have a set of transceiver.
(2) ack/nack response (Acknowledgement/Negative Acknowledgement, hereinafter referred to as the ACK/NACK) feedback scheme in existing system is as follows:
In existing lte-a system, subscriber terminal equipment (User Equipment, hereinafter referred to as UE) only can use a class carrier wave (this carrier wave is FDD carrier wave or TDD carrier wave) to carry out transfer of data in a subframe.When UE is operated in multiple carrier wave simultaneously, only support multiple FDD carrier aggregation (Carrier Aggregation, hereinafter referred to as CA), or multiple TDD carrier aggregation.Therefore ACK/NACK transmission all defines for FDD system or TDD system.
In LTE FDD system, UE is downlink data receiving in subframe n-4, feeds back the signaling of the data on this descending sub frame the need of re-transmission, i.e. ACK/NACK in sub-frame of uplink n.During FDD carrier aggregation, the ACK/NACK information that in subframe n-4, multiple descending carrier is corresponding will be fed back simultaneously in sub-frame of uplink n.As ACK/NACK row shared channel (Physical Uplink Shared Channel physically, hereinafter referred to as PUSCH) on when transmitting, for dispatching Physical Downlink Control Channel (the Physical Downlink Control Channel of PUSCH transmission, hereinafter referred to as PDCCH)/strengthen Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel, hereinafter referred to as EPDCCH) in do not define downlink business index (Downlink Assignment Index, hereinafter referred to as DAI) territory, UE determines the ACK/NACK number of bits of feedback transmitted on PUSCH according to the transmission mode of being polymerized carrier number and each carrier wave.
In LTE TDD system, UE may ACK/NACK information corresponding to same sub-frame of uplink feedback M descending sub frame, particularly, the ACK/NACK information of the downlink data detected in descending sub frame n-k can be fed back by UE in sub-frame of uplink n, wherein k ∈ K, M is the number that the index element k in K gathered by table 1, and the M possibility of different TDD carrier wave and different sub-frame of uplink is identical also may be different, specifically depends on whether the TDD previous-next row configuration that different TDD carrier wave uses is identical.
Line correlation K value: K:{k under table 1TDD 0, k 1... k m-1}
Now, the arrangement of multiple radio frames order, even in radio frames a, last subframe is k, then in radio frames a+1, first subframe is k+1, table 1 only for a radio frames give each sub-frame of uplink for the situation of K, wherein n-k < 0 represents the descending sub frame in last radio frames.
In a tdd system, if the TDD previous-next row configuration of the carrier wave at PUSCH transmission place or up reference TDD previous-next row are configured to other configurations (as configured 1,2,3,4,5,6) except configuring except 0, then for descending control information format (Downlink Control Information format that the PDCCH/EPDCCH dispatching PUSCH uses, hereinafter referred to as DCI format) in there is DAI territory, otherwise not exist.If when current PUSCH has corresponding PDCCH/EPDCCH and there is DAI territory in PDCCH/EPDCCH, can determine according to the indication information in DAI territory the ACK/NACK feedback sequence that transmits on PUSCH; Now because base station knows to scheduled how many descending sub frames in advance, can by DAI flexibly control UE feed back descending sub frame number, thus improve efficiency of transmission; If current PUSCH has corresponding PDCCH/EPDCCH but there is not DAI territory or current PUSCH in PDCCH/EPDCCH when not having a corresponding PDCCH/EPDCCH, the ACK/NACK feedback sequence that transmits on PUSCH can only be determined at all descending sub frame numbers that current sub-frame of uplink carries out ACK/NACK feedback according to correspondence, now because base station only may scheduled very fraction subframe in these subframes, for not having the subframe UE dispatched also to need feeding back ACK/NACK, waste transfer resource; Particularly when M value is larger, if base station is actual only scheduled 1 or a few subframe on polymerization carrier wave, then the wasting of resources is comparatively serious.
In addition, in existing FDD or TDD CA system, only be supported on a PUSCH and transmit UCI, if there is the information such as ACK/NACK, CSI in present sub-frame and UE is polymerized multiple carrier operation simultaneously, then need selection carrier wave and these information are transmitted in the PUSCH of selected carrier wave.Because ACK/NACK is transmitted by punching mapping mode on PUSCH, destroy for transferring ACK/nack message by data division information, therefore, too much invalid ACK/NACK feedback (namely to the feedback information that the descending sub frame/carrier wave not having to dispatch produces) also can affect to the reception of upstream data.
（3）TDD-FDD Joint Operation
In order to improve the availability of frequency spectrum further to adapt to throughput and the capacity requirement of constantly enhancing, propose TDD-FDD Joint Operation.The possible implementation of the TDD-FDD Joint Operation of current discussion has: bimodulus (Dual mode) mode etc. of TDD-FDD CA mode, dual link (Dual Connectivity) mode, enhancing.No matter adopt which kind of implementation, when UE is descending may be simultaneously operated in FDD and TDD carrier wave time, UE needs to feed back the UCI of FDD and TDD carrier wave in a sub-frame of uplink simultaneously.
When transmitting UCI on PUSCH, define in FDD system for dispatch PUSCH PDCCH/EPDCCH in there is no DAI territory, if select the PUSCH transmission UCI on FDD carrier wave, then cannot the effective number of bits of feedback of control ACK/NACK on PUSCH, particularly for the ACK/NACK feedback information of TDD carrier wave, may there is more bit is feedback information to not having the descending sub frame of schedule information to produce, thus ACK/NACK impact on data when PUSCH transmission can be expanded, also reduce the efficiency of transmission of ACK/NACK, and then the efficiency of transmission of influential system.
Cannot the problem of choose reasonable PUSCH transmission UCI under TDD-FDD Joint Operation scene for how, at present effective solution is not yet proposed.
Summary of the invention
For cannot the problem of choose reasonable PUSCH transmission UCI under TDD-FDD Joint Operation scene in correlation technique, the present invention proposes a kind of sending method of ascending control information and device and method of reseptance and device, can UE be made reasonably to send ACK/NACK feedback information under TDD-FDD Joint Operation scene, and can the wasting of resources be avoided.
Technical scheme of the present invention is achieved in that
According to an aspect of the present invention, provide the sending method of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, send UCI.
This sending method comprises: when there is PUSCH transmission on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; Generate UCI, and the PUSCH transmission UCI by determining.
Wherein, multiple TDD carrier wave all exists PUSCH transmission, if multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier is defined as the PUSCH for transmitting UCI.
Alternatively, multiple TDD carrier wave all exists PUSCH transmission, select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI; Or,
All there is PUSCH transmission in multiple TDD carrier wave and multiple TDD carrier wave does not comprise main carrier, select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection be defined as the PUSCH for transmitting UCI.
Wherein, predetermined policy can comprise following one of at least:
The TDD carrier wave selecting carrier index maximum or minimum, the carrier wave selecting appointment to number.
In addition, there is the TDD previous-next row configuration of at least one carrier wave in the TDD carrier wave of PUSCH transmission or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6.
In addition, the PUSCH existed at least one carrier wave in the TDD carrier wave of PUSCH transmission has corresponding PDCCH/EPDCCH.
Wherein, the TDD DCI format0/4 of descending control information format DCI format for defining in LTERel-10/11 that use of PDCCH/EPDCCH.
In addition, for dispatching the PDCCH/EPDCCH of PUSCH in TDD carrier wave or FDD carrier transmission.
Further, when PDCCH/EPDCCH in TDD carrier transmission, transmission PDCCH/EPDCCH carrier wave with transmission PUSCH carrier wave identical or different.
In addition, when generating UCI, according to the indication information in the DAI territory in the PDCCH/EPDCCH that the PUSCH determined is corresponding, determine the UCI needing to generate.
Alternatively, the indication information in DAI territory is used to indicate the dispatch situation of TDD carrier wave and FDD carrier wave and/or is used to indicate the need of sending the ACK/NACK feedback information corresponding to TDD carrier wave and/or FDD carrier wave; Or,
The indication information in DAI territory is used to indicate the information of the ACK/NACK feedback information sequence determining TDD carrier wave to need send in current sub-frame of uplink; Or,
Described DAI territory is used to indicate the information for determining FDD carrier wave and TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.
According to a further aspect in the invention, provide the method for reseptance of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, receive UCI.
This method of reseptance comprises: when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; UCI is received by the PUSCH determined.
Wherein, when scheduled multiple PUSCH and transmitting on multiple TDD carrier wave, if multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier is defined as the PUSCH for transmitting UCI.
In addition, alternatively, when scheduled multiple PUSCH and transmitting on multiple TDD carrier wave, then select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI; Or,
When scheduled multiple PUSCH transmit on multiple TDD carrier wave and multiple TDD carrier wave does not comprise main carrier, select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection be defined as the PUSCH for transmitting UCI.
Wherein, above-mentioned predetermined policy can comprise following one of at least:
The TDD carrier wave selecting carrier index maximum or minimum, the carrier wave selecting appointment to number.
In addition, the TDD previous-next row configuration of at least one carrier wave be scheduled in the TDD carrier wave of PUSCH transmission or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6.
In addition, the PUSCH at least one carrier wave be scheduled in the TDD carrier wave of PUSCH transmission has corresponding PDCCH/EPDCCH.
Wherein, the TDD DCI format0/4 of descending control information format DCI format for defining in LTE Rel-10/11 that use of PDCCH/EPDCCH.
In addition, for dispatching the PDCCH/EPDCCH of PUSCH in TDD carrier wave or FDD carrier transmission.
Wherein, when PDCCH/EPDCCH in TDD carrier transmission, transmission PDCCH/EPDCCH carrier wave with transmission PUSCH carrier wave identical or different.
In addition, alternatively, by the indication information for dispatching the DAI territory in the PDCCH/EPDCCH of PUSCH, indicating the dispatch situation of TDD carrier wave and FDD carrier wave and/or being used to indicate the need of sending the ACK/NACK feedback information corresponding to TDD carrier wave and/or FDD carrier wave; Or,
By the indication information for dispatching the DAI territory in the PDCCH/EPDCCH of PUSCH, the information of ACK/NACK feedback information sequence TDD carrier wave needing send in current sub-frame of uplink is determined in instruction; Or,
Described DAI territory is used to indicate the information for determining FDD carrier wave and TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.
In accordance with a further aspect of the present invention, provide the dispensing device of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, send UCI.
This dispensing device comprises: determination module, TDD carrier wave exists PUSCH transmission, determines that a PUSCH on TDD carrier wave is for transmitting UCI; Sending module, for generating UCI, and the PUSCH transmission UCI by determining.
According to a further aspect in the invention, provide the receiving system of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, receive UCI.
This receiving system comprises: determination module, for when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; Receiver module, receives UCI for the PUSCH by determining.
The present invention transmits UCI by being used in the PUSCH that TDD carrier wave transmits, can more efficientlyly utilize in TDD system for dispatching the DAI territory indication information in the PDCCH/EPDCCH of PUSCH, the rationally UCI bit number of effective control FDD and/or TDD carrier wave, improve efficiency of transmission, avoid the problem that UCI takies a large amount of signaling consumption and the harmful effect brought thus.
Accompanying drawing explanation
Fig. 1 is the transmission mode contrast schematic diagram of FDD in prior art, H-FDD and TDD;
Fig. 2 is the flow chart of the sending method of ascending control information according to the embodiment of the present invention;
Fig. 3 is the flow chart of the method for reseptance of ascending control information according to the embodiment of the present invention;
Fig. 4 is the schematic diagram according to the transmission of the ascending control information of the embodiment of the present invention and the example 1 of reception programme;
Fig. 5 is the schematic diagram according to the transmission of the ascending control information of the embodiment of the present invention and the example 2 of reception programme;
Fig. 6 is the schematic diagram according to the transmission of the ascending control information of the embodiment of the present invention and the example 3 of reception programme;
Fig. 7 is the schematic diagram according to the transmission of the ascending control information of the embodiment of the present invention and the example 4 of reception programme;
Fig. 8 is the block diagram of the dispensing device of ascending control information according to the embodiment of the present invention;
Fig. 9 is the block diagram of the receiving system of ascending control information according to the embodiment of the present invention;
Figure 10 is the structured flowchart of the computer that can realize according to technical scheme of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
In TDD-FDD Joint Operation scene, FDD carrier wave or TDD carrier wave all can as main carriers, support that the UE of TDD-FDD Joint Operation has the ability to access tradition (legacy) FDD single mode carrier wave and legacy TDD single mode carrier wave, the FDD UE of legacy FDD UEs and support TDD-FDD Joint Operation can reside in and be connected to the FDD carrier wave participating in TDD-FDD Joint Operation, the TDD UE of legacy TDD UEs and support TDD-FDD Joint Operation can reside in and be connected to the TDD carrier wave participating in TDD-FDD Joint Operation.UCI due to multiple carrier wave needs to transmit on a PUSCH, and therefore the polymerization of multicarrier may cause the increase of UCI signaling consumption.
Also be configured with in the scene of FDD carrier wave to both be configured with TDD carrier wave at UE, solving cannot the problem of effective control UCI signaling consumption, the present invention proposes solution, will describe embodiments of the invention in detail below.
According to embodiments of the invention, provide the sending method of a kind of ascending control information (UCI), for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, send UCI.
As shown in Figure 2, comprise according to the sending method of the ascending control information of the embodiment of the present invention:
Step S201, TDD carrier wave exists PUSCH transmission, determines that a PUSCH on TDD carrier wave is for transmitting UCI;
Step S203, generates UCI, and the PUSCH transmission UCI by determining.
When selecting the carrier wave for transmitting UCI, by means of various ways, the PUSCK of on TDD carrier wave can be defined as the PUSCH for transmitting UCI.
In one embodiment, multiple TDD carrier wave all exists PUSCH transmission, if multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier can be defined as the PUSCH for transmitting UCI.
In another embodiment, can not consider whether main carrier has PUSCH transmission, now, if multiple TDD carrier wave all exists PUSCH transmission, then can select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.In another embodiment, if all there is PUSCH transmission in multiple TDD carrier wave and these TDD carrier waves do not comprise main carrier, then select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.
Above-mentioned predetermined policy can carry out the selection of carrier wave according to the various parameters of carrier wave, such as, above-mentioned predetermined policy can comprise following one of at least: the TDD carrier wave selecting carrier index maximum or minimum, select to specify the carrier wave of numbering.In addition, by means of above-mentioned predetermined policy, can also according to other Selecting parameter TDD carrier wave of carrier wave, such as, can, according in the relevant parameter (comprising transmission bandwidth and/or modulating-coding grade etc.) of the PUSCH of the transmission on the bandwidth of the carrier wave priority of carrier wave, carrier wave, year wave frequency, carrier wave or its combination, select carrier wave to be used for transmitting UCI by the PUSCH on this carrier wave.
In addition, when determining a PUSCH at least one TDD carrier wave for transmitting UCI, except can prioritizing selection main carrier PUSCH or except selecting according to predetermined policy, in also can meeting the following conditions further as alternative TDD carrier wave one of at least:
There is the TDD previous-next row configuration of at least one carrier wave in the TDD carrier wave of PUSCH transmission or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6; The PUSCH existed at least one carrier wave in the TDD carrier wave of PUSCH transmission has corresponding PDCCH/EPDCCH.
Wherein, the TDD DCI format0/4 of descending control information format DCI format for defining in LTE Rel-10/11 that use of above-mentioned PDCCH/EPDCCH.
Particularly, for the TDD DCI format0/4 of DCI format for defining in LTE Rel-10/11 system that the PDCCH/EPDCCH dispatching the PUSCH on TDD carrier wave uses; And/or, the FDD DCI format0/4 of the DCI format that the PDCCH/EPDCCH for dispatching the PUSCH on FDD carrier wave uses for defining in LTE Rel-10/11 system.In addition, the DCI format used for the PDCCH/EPDCCH dispatching the PUSCH on FDD carrier wave also can be the new format defined, or for original DCI format carries out the DCI format that the amendment of partial bit territory or expansion obtain, such as, DAI territory can be increased to the former DCI format of FDD, obtain new DCI format.
In addition, can in TDD carrier transmission for the PDCCH/EPDCCH that dispatches the PUSCH of the transmission UCI finally determined, also can in FDD carrier transmission.Wherein, when this PDCCH/EPDCCH in TDD carrier transmission, the carrier wave of transmission PDCCH/EPDCCH can identical (i.e. this carrier dispatching) with the carrier wave of transmission PUSCH, also can difference (namely across carrier dispatching).
Can find out, the solution of the present invention can, when one of following condition meets, select the PUSCH that TDD carrier wave transmits for sending UCI: when TDD carrier wave exists PUSCH transmission; When there is PUSCH transmission in TDD carrier wave and the configuration of the TDD previous-next row of TDD carrier wave or up reference TDD previous-next row are configured to one in configuration 1,2,3,4,5,6; When there is PUSCH transmission in TDD carrier wave and the configuration of the TDD previous-next row of TDD carrier wave or up be configured in configuration 1,2,3,4,5,6 one with reference to TDD previous-next row and this PUSCH has a corresponding PDCCH/EPDCCH time.
In addition, when generating UCI, can the indication information in DAI territory in the PDCCH/EPDCCH corresponding according to the PUSCH determined, determine the UCI needing to generate.
In one embodiment, the indication information in DAI territory is used to indicate the dispatch situation of TDD carrier wave and FDD carrier wave and/or is used to indicate the need of sending the ACK/NACK feedback information corresponding to TDD carrier wave and/or FDD carrier wave.Indication information due to DAI territory can indicate dispatch situation and/or correspond to the ACK/NACK feedback information of TDD carrier wave and/or FDD carrier wave the need of transmission, therefore, according to the indication information in DAI territory, UE just can determine that the ACK/NACK feedback information of which carrier wave needs to send, thus avoid UE unnecessarily to send the problem of a large amount of ACK/NACK feedback information.
Such as, DAI territory can comprise K bit information bit, 2 of K bit information bit kindividual state indicates 2 of FDD and/or TDD carrier wave respectively kplant the different combination ACK/NACK feedback information state of different combined schedule situations and/or instruction FDD carrier wave and TDD carrier wave.
When indicating dispatch situation, can with reference to under type:
Mode (1), DAI territory comprises at least K bit information, for every 1 bit information at least K bit information, the state that 2 of this bit information are different is used to indicate as whether 1 carrier wave corresponding with this bit information in K carrier wave of terminal configuration exists scheduling.That is, K bit and K carrier wave one_to_one corresponding, such as, when a bit is 0, can indicate corresponding carrier wave to there is scheduling, and when this bit is 1, then indicate corresponding carrier wave without scheduling, vice versa.
Mode (2), DAI territory comprises at least K bit information, and for every 1 bit information at least K bit information, whether 1 carrier wave set corresponding with this bit information that the state that 2 of this bit information are different is used to indicate in a predetermined K carrier wave set exists scheduling.Particularly, K bit and K carrier wave set one_to_one corresponding, such as, when a bit is 0, can indicate corresponding carrier wave set to there is scheduling, when this bit is 1, then indicates corresponding carrier wave set without scheduling.Both only can comprise TDD carrier wave or FDD carrier wave in each carrier wave set, also both can comprise TDD carrier wave and also comprise FDD carrier wave.
Mode (3), each bit in the K bit information in DAI territory can be 1 or 0, and like this, K bit information just can be combined into 2 kindividual different state, each state can correspond to a kind of dispatch situation, and now, also may not be scheduled if each carrier wave may be scheduled, then K carrier wave always co-exists in 2 kindividual different dispatch situation, like this, the 2K that K bit information obtains a different state can with 2 kindividual different dispatch situation one_to_one corresponding, thus indicate concrete dispatch situation.
Mode (4), DAI territory comprises at least K bit information, at least K bit information 2 kwhether the individual different state each carrier wave set be respectively used in an indicating predetermined K carrier wave set exists the combined information of scheduling.Similarly, in the manner, each bit in K bit information can be 1 or 0, and like this, K bit information just can be combined into 2 kindividual different state, each state can correspond to a kind of dispatch situation, and now, also may not be scheduled if all carrier waves in each carrier wave set may be scheduled, then K carrier wave set always co-exists in 2 kindividual different dispatch situation, like this, the 2K that K bit information obtains a different state can with 2 kindividual different dispatch situation one_to_one corresponding, thus indicate concrete dispatch situation.
When indicating for FDD carrier wave and/or TDD carrier wave the need of transmission ACK/NACK feedback information, equally can with reference to aforesaid way, what be only the combination correspondence of each bit or all bits is not whether carrier wave or carrier wave set exist scheduling in difference, but corresponds to the need of sending should the ACK/NACK feedback information of carrier wave or carrier wave set.
Above-mentioned K can be natural number, and such as, can be 1, also can be 2, also can be other numerical value.
In another embodiment, the indication information in DAI territory is used to indicate the information of the ACK/NACK feedback information sequence (comprising the number of bits of feedback of ACK/NACK and/or concrete feedback information) determining TDD carrier wave to need send in current sub-frame of uplink; The physical significance of usual DAI instructions field shows as the information that descending sub frame number TDD carrier wave needing carry out in current sub-frame of uplink ACK/NACK feedback is determined in instruction; Be specifically as follows information as shown in table 4; This information is generally used for when UE is configured to use PUCCH format3, determine descending sub frame number TDD carrier wave needing carry out in current sub-frame of uplink ACK/NACK feedback, when UE is configured to use PUCCH format1b with channel selection, the concrete feedback information sequence determining TDD carrier wave to need carry out in current sub-frame of uplink ACK/NACK feedback produces (different mappings form is also corresponding different feedback number of sub frames) according to which ACK/NACK mapping form.
Now, for TDD carrier wave, determine to feed back number of sub frames according to DAI indication information, produce ACK/NACK feedback information according to this feedback number of sub frames; For FDD carrier wave, determine that corresponding current sub-frame of uplink carries out the descending sub frame number of ACK/NACK feedback according to the feedback sequential of FDD carrier wave, produce ACK/NACK feedback information according to this number of sub frames.
In another embodiment, the indication information in DAI territory is used to indicate the information for determining FDD and TDD carrier wave needs in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback; Such as, DAI territory comprises at least K bit information, at least K bit information 2 kindividual different state is respectively used to indicate the information for determining described FDD and described TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.Above-mentioned K can be natural number, and such as, can be 1, also can be 2, also can be other numerical value.
In addition, the UCI produced by terminal only can comprise the UCI of FDD carrier wave, also only can comprise the UCI of TDD carrier wave, and the UCI that both can also comprise FDD carrier wave also comprises the UCI of TDD carrier wave.
According to embodiments of the invention, additionally provide the method for reseptance of a kind of UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, receive UCI.
As shown in Figure 3, comprise according to the method for reseptance of the UCI of the embodiment of the present invention:
Step S301, when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI;
Step S303, receives UCI by the PUSCH determined.
When determining the carrier wave transmitting UCI, by means of various ways, the PUSCK of on TDD carrier wave can be defined as the PUSCH for transmitting UCI, so that receipt of subsequent UCI.
In one embodiment, multiple TDD carrier wave all exists PUSCH transmission, if multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier can be defined as the PUSCH for transmitting UCI.
In another embodiment, can not consider whether main carrier has PUSCH transmission, now, if multiple TDD carrier wave all exists PUSCH transmission, then can select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.In another embodiment, if all there is PUSCH transmission in multiple TDD carrier wave and these TDD carrier waves do not comprise main carrier, then select in multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.
Above-mentioned predetermined policy can carry out the selection of carrier wave according to the various parameters of carrier wave, such as, above-mentioned predetermined policy can comprise following one of at least: the TDD carrier wave selecting carrier index maximum or minimum, select to specify the carrier wave of numbering.In addition, by means of above-mentioned predetermined policy, can also according to other Selecting parameter TDD carrier wave of carrier wave, such as, can, according in the relevant parameter (comprising transmission bandwidth and/or modulating-coding grade etc.) of the PUSCH of the transmission on the bandwidth of the carrier wave priority of carrier wave, carrier wave, year wave frequency, carrier wave or its combination, select carrier wave to be used for transmitting UCI by the PUSCH on this carrier wave.
When determining a PUSCH at least one TDD carrier wave for transmitting UCI, except can prioritizing selection main carrier PUSCH or except selecting according to predetermined policy, in also can meeting the following conditions further as alternative TDD carrier wave one of at least: the TDD previous-next row configuration of at least one carrier wave in the TDD carrier wave of the PUSCH transmission that has been scheduled or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6; PUSCH at least one carrier wave in the TDD carrier wave of the PUSCH transmission that has been scheduled has corresponding PDCCH/EPDCCH.
Wherein, the TDD DCI format0/4 of descending control information format DCI format for defining in LTE Rel-10/11 that use of PDCCH/EPDCCH.Particularly, for the TDD DCI format0/4 of DCI format for defining in LTE Rel-10/11 system that the PDCCH/EPDCCH dispatching the PUSCH on TDD carrier wave uses; And/or, the FDDDCI format0/4 of the DCI format that the PDCCH/EPDCCH for dispatching the PUSCH on FDD carrier wave uses for defining in LTE Rel-10/11 system.In addition, the DCI format used for the PDCCH/EPDCCH dispatching the PUSCH on FDD carrier wave also can be the new format defined, or for original DCI format carries out the DCI format that the amendment of partial bit territory or expansion obtain, such as, DAI territory can be increased to the former DCIformat of FDD, obtain new DCI format.
In addition, can at TDD carrier wave for the PDCCH/EPDCCH dispatching the above-mentioned PUSCH determined, also can in FDD carrier transmission.Wherein, when this PDCCH/EPDCCH in TDD carrier transmission, transmission PDCCH/EPDCCH carrier wave with transmission PUSCH carrier wave identical or different.
Can find out, the solution of the present invention when one of following condition meets, can be determined that the PUSCH that TDD carrier wave transmits is the PUSCH for sending UCI, and receive UCI on this PUSCH:
When base station on TDD carrier wave to terminal scheduling during PUSCH transmission; When base station on TDD carrier wave to terminal scheduling when PUSCH transmission and the configuration of the TDD previous-next row of TDD carrier wave or up of to be configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6; When base station on TDD carrier wave to terminal scheduling PUSCH transmission and the configuration of the TDD previous-next row of TDD carrier wave or up be configured in configuration 1,2,3,4,5,6 one with reference to TDD previous-next row and this PUSCH has a corresponding PDCCH/EPDCCH time.
In addition, above-mentioned for the DAI territory of dispatching in the PDCCH/EPDCCH of PUSCH can be used for indicate much information.
In one embodiment, for dispatch PUSCH PDCCH/EPDCCH in the indication information in DAI territory be used to indicate the dispatch situation of TDD carrier wave and FDD carrier wave and/or be used to indicate the need of sending the ACK/NACK feedback information corresponding to TDD carrier wave and/or FDD carrier wave.Indication information due to DAI territory can indicate dispatch situation and/or correspond to the ACK/NACK feedback information of TDD carrier wave and/or FDD carrier wave the need of transmission, therefore, according to the indication information in DAI territory, UE just can determine that the ACK/NACK feedback information of which carrier wave needs to send, thus avoid UE unnecessarily to send the problem of a large amount of ACK/NACK feedback information.Describe before concrete indicating mode, no longer repeat here.
In another embodiment, in the PDCCH/EPDCCH dispatching PUSCH, the indication information in DAI territory is used to indicate the information of the ACK/NACK feedback information sequence determining TDD carrier wave to need send in current sub-frame of uplink.Now, for TDD carrier wave, determine to feed back number of sub frames according to DAI indication information, produce ACK/NACK feedback information according to this number of sub frames; For FDD carrier wave, determine that corresponding current sub-frame of uplink carries out the descending sub frame number of ACK/NACK feedback according to the feedback sequential of FDD carrier wave, produce ACK/NACK feedback information according to this number of sub frames.
In another embodiment, the indication information in DAI territory is used to indicate the information for determining FDD and TDD carrier wave needs in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback; Such as, DAI territory comprises at least K bit information, and at least 2K different state of K bit information is respectively used to indicate the information for determining described FDD and described TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.Above-mentioned K can be natural number, and such as, can be 1, also can be 2, also can be other numerical value.
Below in conjunction with instantiation, technical scheme of the present invention is described.
Example 1:
As shown in Figure 4, UE has been configured a FDD carrier wave and a TDD carrier wave, and each on FDD and TDD carrier wave in present sub-frame exist a PUSCH transmission.
In this example, due to TDD carrier wave existing PUSCH, therefore, the PUSCH selected on TDD carrier wave is used for the UCI transmitting FDD carrier wave and TDD carrier wave by UE;
Particularly, UCI production method is as follows:
If the PUSCH of this selection exists corresponding PDCCH/EPDCCH, and comprises DAI territory in this PDCCH/EPDCCH, then determine the ACK/NACK information in the UCI that UE transmits on this PUSCH according to the indication information in DAI territory:
(method 1): DAI indicates dispatch situation or the ACK/NACK feedback of FDD carrier wave and TDD carrier wave, for 1 bit DAI, concrete indicating mode can for shown in table 2, but be not limited to the corresponding relation of table 2, now, DAI territory comprises 1 bit information, when DAI bit information state is 0, instruction FDD and TDD carrier wave all without scheduling, and when DAI bit information state is 1, indicates at least one FDD carrier wave and/or at least one TDD carrier wave to there is scheduling; Vice versa.
Table 2
In addition, DAI indicates the mode of the dispatch situation of FDD carrier wave and TDD carrier wave can with reference to shown in table 3, for 2 bit DAI, now, when DAI domain information can indicate following 4 kinds of different situations:
(1) when DAI bit information state is 00, instruction FDD carrier wave and TDD carrier wave all without dispatching or not needing feeding back ACK/NACK, now do not produce ACK/NACK, not transferring ACK/NACK in current PUSCH;
(2) when DAI bit information state is 01, when indicating only FDD carrier wave there is scheduling or need feeding back ACK/NACK, only ACK/NACK is produced to each FDD carrier wave, when FDD carrier wave uses FDD to feed back sequential, specifically can produce feedback information according to the ACK/NACK production method transmitted on PUSCH of LTE Rel-10/11FDD system definition to this FDD carrier wave, and transmit in current PUSCH;
(3) when DAI bit information state is 10, only TDD carrier wave is indicated to there is scheduling or need feeding back ACK/NACK, now only ACK/NACK is produced to each TDD carrier wave, when TDD carrier wave uses FDD to feed back sequential, specifically can produce feedback information according to the ACK/NACK production method transmitted on PUSCH of LTE Rel-10/11FDD system definition to this TDD carrier wave, and transmit in current PUSCH, especially, when the subframe corresponding with current sub-frame of uplink on TDD carrier wave determined according to FDD feedback sequential is up, can not to this TDD carrier wave feeding back ACK/NACK, when TDD carrier wave uses TDD to feed back sequential, specifically can produce feedback information (comprise and use different PUCCH transmission plans and adopt identical/different TDD uplink-downlink configuration situation) according to the ACK/NACK production method transmitted on PUSCH of LTE Rel-10/11TDD system definition to this TDD carrier wave, transmit in current PUSCH,
(4) when DAI bit information state is 11, all there is scheduling or all need feeding back ACK/NACK in instruction FDD carrier wave and TDD carrier wave, now in the manner described above ACK/NACK is produced to FDD and TDD carrier wave respectively, and the ACK/NACK of each FDD carrier wave and each TDD carrier wave is linked togather according to predetermined mode level, transmit in current PUSCH;
Table 3
In fact, corresponding relation between the state of the DAI bit information shown in table 2 and table 3 and instruction content can adjust, and, more bit information can be adopted to carry out corresponding more instruction content, thus more accurately indicate the concrete dispatch situation of each FDD carrier wave/carrier wave set and/or each TDD carrier wave/carrier wave set and/or more accurately indicate and send ACK/NACK feedback information the need of to each FDD carrier wave/carrier wave set and/or each TDD carrier wave/carrier wave set.
(method 2): DAI indicates the information for determining actual downstream number of sub frames TDD carrier wave needing carry out in current sub-frame of uplink ACK/NACK feedback, for 2 bit DAI, concrete indicating mode can for shown in table 4, but be not limited to the corresponding relation of table 4, now: to TDD carrier wave, determine to feed back number of sub frames according to the information of DAI instruction, determine ACK/NACK according to the feedback number of sub frames determined further, concrete grammar is with the ACK/NACK production method transmitted on PUSCH defined in LTE-A Rel-10/11TDD system; For FDD carrier wave, then always feed back according to the ACK/NACK based on FDD carrier wave descending sub frame number sequential determined FDD carrier wave carrying out ACK/NACK feedback at current sub-frame of uplink, determine the ACK/NACK of FDD carrier wave, if there is the ACK/NACK of FDD and TDD carrier wave simultaneously, then be linked togather according to predetermined mode level, transmit in current PUSCH;
Table 4
(method 3): DAI indicates the information for determining the actual downstream number of sub frames FDD and TDD carrier wave needing carry out in current sub-frame of uplink ACK/NACK feedback, for 2 bit DAI, concrete indicating mode can for shown in table 4, but be not limited to the corresponding relation of table 4, suppose that the information of DAI instruction in table 4 is now: to each FDD and TDD carrier wave, can determine to feed back number of sub frames according to the information of DAI instruction, and determine ACK/NACK according to feedback number of sub frames further, concrete grammar is similar in LTE-A Rel-10/11TDD system the ACK/NACK production method transmitted on PUSCH defined, such as: when UE be configured in PUCCH adopts PUCCH format3 scheme time: all carrier waves in FDD and TDD carrier wave all meet to feed back according to the ACK/NACK of each carrier wave descending sub frame number M that correspondence on this carrier wave that sequential relationship determines carries out ACK/NACK feedback in current sub-frame of uplink be no more than 4 time, for each FDD and TDD carrier wave, can by feed back according to the ACK/NACK of this carrier wave c on this carrier wave that sequential relationship determines the corresponding descending sub frame number Mc that carry out ACK/NACK feedback in current sub-frame of uplink with in minimum value in present sub-frame, need as this carrier wave actual the descending sub frame number carrying out ACK/NACK feedback, namely according to this descending sub frame number shown in value produces ACK/NACK feedback information to this carrier wave, at least one carrier wave is there is in all carrier waves in FDD and TDD carrier wave, when feeding back that on this carrier wave that sequential relationship determines, the corresponding descending sub frame number M carrying out ACK/NACK feedback in current sub-frame of uplink is more than 4 according to the ACK/NACK of this carrier wave, for each FDD and TDD carrier wave, determine on each carrier wave wherein, U cfor the M carrying out ACK/NACK feedback in sub-frame of uplink n corresponding on each carrier wave c cthe sum of the PDCCH/EPDCCH of the PDSCH received in individual descending sub frame set and the release of indicating downlink semi-continuous scheduling SPS resource, U is the maximum of the Uc of all carrier waves, when UE is configured in employing PUCCH format 1b with channel selection scheme on PUCCH, also can all be no more than according to the M of all subframes in same PUCCH format 3 mode defined in the situation of 4 and produce ACK/NACK feedback information, or according to value determine ACK/NACK feedback information sequence (the i.e. basis of the corresponding FDD carrier wave that UE transmits on PUSCH and TDD carrier wave value determines corresponding ACK/NACK mapping form, produces ACK/ANCK feedback information according to this mapping form), especially, said process can further include, when receiving and UE is when correspondence carries out not receiving in the descending sub frame of ACK/NACK feedback the PDCCH of PDSCH and the release of indicating downlink SPS resource in current sub-frame of uplink, UE to determine in current sub-frame of uplink on PUSCH not feeding back ACK/NACK.In said process, if there is the ACK/NACK of FDD and TDD carrier wave simultaneously, be then linked togather according to predetermined mode level, transmit in current PUSCH;
In addition, for 1 bit DAI, the state that 2 of 1 bit DAI are different is respectively used to instruction and for determining FDD and TDD carrier wave needs in current sub-frame of uplink the information of the descending sub frame number carrying out ACK/NACK feedback is concrete indicating mode for shown in table 5, but can be not limited to the corresponding relation of table 5; For each FDD carrier wave and each TDD carrier wave, can by feed back according to the ACK/NACK of this carrier wave c descending sub frame number Mc that this carrier wave correspondence that sequential relationship determines carry out ACK/NACK feedback in current sub-frame of uplink with in minimum value in present sub-frame, need as this carrier wave actual the descending sub frame number carrying out ACK/NACK feedback namely according to descending sub frame number shown in value produces ACK/NACK feedback information to this carrier wave; It should be noted that, above-mentioned ACK/NACK producing method is applicable to the situation that UE is configured to adopt PUCCH format 3 or be configured to adopt PUCCH format 1b with channel selection on PUCCH simultaneously;
Table 5
In addition, for 1 bit DAI, the state that 2 of 1 bit DAI are different is respectively used to instruction and for determining FDD and TDD carrier wave needs in current sub-frame of uplink the information of the descending sub frame number carrying out ACK/NACK feedback is concrete indicating mode for shown in table 6, but can be not limited to the corresponding relation of table 6; For each FDD carrier wave and each TDD carrier wave, when time, correspondence on this carrier wave determined according to the ACK/NACK feedback sequential relationship of this carrier wave c can be carried out the descending sub frame number M of ACK/NACK feedback in current sub-frame of uplink cwith in minimum value in present sub-frame, need as this carrier wave actual the descending sub frame number carrying out ACK/NACK feedback, namely according to this descending sub frame number shown in value produces ACK/NACK feedback information to this carrier wave, when time, determine not send ACK/NACK feedback information to FDD and TDD carrier wave.It should be noted that, above-mentioned ACK/NACK producing method is applicable to the situation that UE is configured to adopt PUCCH format 3 or be configured to adopt PUCCH format 1b with channel selection on PUCCH simultaneously;
Table 6
In addition, if there is not corresponding PDCCH/EPDCCH in the PUSCH of this selection, or there is corresponding PDCCH/EPDCCH and do not comprise DAI territory in this PDCCH/EPDCCH, namely there is not DAI territory during both of these case, UE can not obtain DAI indication information, then feed back according to the ACK/NACK based on FDD carrier wave descending sub frame number sequential determined FDD carrier wave carrying out ACK/NACK feedback at current sub-frame of uplink respectively, determine the ACK/NACK of FDD carrier wave, and descending sub frame number sequential determined TDD carrier wave carrying out ACK/NACK feedback at current sub-frame of uplink is fed back according to the ACK/NACK based on TDD carrier wave, determine the ACK/NACK of TDD carrier wave, and the ACK/NACK of FDD carrier wave and TDD carrier wave is linked togather according to predetermined mode level, transmit in current PUSCH,
In addition, if UE needs also to comprise cycle CSI information in the UCI of transmission in current sub-frame of uplink, feedback cycle and the relevant configured parameter of CSI wave period is then carried respectively according to FDD carrier wave and TDD, cycle CSI is produced to FDD carrier wave and TDD carrier wave, if there is cycle CSI in multiple carrier wave (comprising FDD carrier wave and/or TDD carrier wave) simultaneously, then be linked togather according to predetermined mode level, transmit in current PUSCH.
Example 2:
As shown in Figure 5, UE has been configured 2 FDD carrier waves and 2 TDD carrier waves; A PUSCH transmission is all there is on each carrier in present sub-frame.Suppose, determine that the predetermined policy of PUSCH is the PUSCH being defined as the PUSCH of TDD carrier wave minimum for carrier index to transmit UCI.
Now, due to multiple TDD carrier wave existing PUSCH, according to carrier index, select the PUSCH on the TDD carrier wave of minimum carrier index, namely UE selects TDD carrier wave 1(TDD carrier index minimum) on PUSCH for transmitting the UCI of FDD carrier wave and TDD carrier wave.Concrete UCI production method, with example 1, does not repeat them here;
Example 3:
As shown in Figure 6, UE has been configured a FDD carrier wave and 2 TDD carrier waves and TDD carrier wave; Each on FDD and TDD carrier wave in present sub-frame exist a PUSCH transmission, and the uplink-downlink configuration of TDD carrier wave 1 or be the uplink-downlink configuration of configuration 0, TDD carrier wave 2 with reference to uplink-downlink configuration or be in configuration 1,2,3,4,5,6 one with reference to uplink-downlink configuration.
Now, owing to there is PUSCH in TDD carrier wave, and the uplink-downlink configuration of TDD carrier wave 2 or with reference to uplink-downlink configuration be in configuration 1,2,3,4,5,6 one (PUSCH namely on this carrier wave when exist correspondence PDCCH/EPDCCH time, DAI territory is there is in PDCCH/EPDCCH), so UE can select the PUSCH on TDD carrier wave 2 for transmitting the UCI of FDD carrier wave and TDD carrier wave;
Due to the uplink-downlink configuration of TDD carrier wave selected or be in configuration 1,2,3,4,5,6 one with reference to uplink-downlink configuration, therefore:
When the PUSCH of this choosing exists corresponding PDCCH/EPDCCH, always there is DAI territory in this PDCCH/EPDCCH, then concrete ACK/NACK production method, with the situation that there is DAI territory in example 1, does not repeat them here;
When the PUSCH of this selection does not exist corresponding PDCCH/EPDCCH, cannot obtain DAI territory, then concrete ACK/NACK production method, with the situation that there is not DAI territory in example 1, does not repeat them here.
In addition, if UE needs also to comprise cycle CSI information in the UCI of transmission in current sub-frame of uplink, concrete production method, with the description in example 1, no longer repeats here.
Example 4:
As shown in Figure 7, UE has been configured 2 FDD carrier waves and 2 TDD carrier waves; A PUSCH transmission is all there is on each carrier in present sub-frame, and the uplink-downlink configuration of TDD carrier wave 1 and carrier wave 2 or be in configuration 1,2,3,4,5,6 one with reference to uplink-downlink configuration, and PUSCH on TDD carrier wave 1 is the PUSCH of semi-continuous scheduling without the PDCCH/EPDCCH(of correspondence), PUSCH on TDD carrier wave 2 has corresponding PDCCH/EPDCCH.
Now, owing to there is PUSCH in TDD carrier wave, and the uplink-downlink configuration of TDD carrier wave 2 or be in configuration 1,2,3,4,5,6 one with reference to uplink-downlink configuration and PUSCH on TDD carrier wave 2 has the PUSCH on corresponding PDCCH/EPDCCH(i.e. this carrier wave there is corresponding PDCCH/EPDCCH and there is DAI territory in PDCCH/EPDCCH), so UE can select the PUSCH on TDD carrier wave 2 for transmitting the UCI of FDD carrier wave and TDD carrier wave.
Always have corresponding PDCCH/EPDCCH due to the PUSCH selected and always there is DAI territory in PDCCH/EPDCCH, then concrete ACK/NACK production method, with the situation that there is DAI territory in example 1, does not repeat them here;
If UE needs also to comprise cycle CSI information in the UCI of transmission in current sub-frame of uplink, concrete production method, with the method described in example 1, does not repeat them here.
In addition, in the example enumerated above, only illustrate with the situation of the main carrier of terminal for TDD carrier wave in some embodiments, in fact, the situation that it is main carrier that technical scheme of the present invention is not only applicable to TDD carrier wave, and the situation that to go for FDD carrier wave be main carrier, the mode that the UCI that can also be applicable to FDD and TDD only transmits on a PUSCH; In addition, the present invention is also unrestricted to the carrier wave of transferring ACK/NACK feedback information, in fact, the solution of the present invention is applicable to mode that ACK/NACK can transmit respectively on different PUSCH (such as, transmit in the UCI of a FDD carrier wave PUSCH on FDD carrier wave, transmit in the UCI of a TDD carrier wave PUSCH on TDD carrier wave).
According to embodiments of the invention, additionally provide the dispensing device of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, send UC.
As shown in Figure 8, comprise according to the dispensing device of the embodiment of the present invention:
Determination module 81, TDD carrier wave exists PUSCH transmission, determines that a PUSCH on TDD carrier wave is for transmitting UCI;
Sending module 82, for generating UCI, and the PUSCH transmission UCI by determining.
According to embodiments of the invention, additionally provide the receiving system of a kind of ascending control information UCI, for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, receive UCI.
As shown in Figure 9, comprise according to the receiving system of the embodiment of the present invention:
Determination module 91, for when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI;
Receiver module 92, receives UCI for the PUSCH by determining.
Device shown in Fig. 8 and Fig. 9 equally can with reference to the mode described before by determine to transmit UCI PUSCH and by the dispatch situation of DAI territory indication carrier wave/carrier wave set or the need of ACK/NACK feedback information corresponding to feedback, its detailed process is described, and no longer repeats here.
In sum, by means of technique scheme of the present invention, the present invention transmits UCI by being used in the PUSCH that TDD carrier wave transmits, can more efficientlyly utilize in TDD system for dispatching the DAI territory indication information in the PDCCH/EPDCCH of PUSCH, the rationally UCI bit number of effective control FDD and/or TDD carrier wave, improve efficiency of transmission, avoid the problem that UCI takies a large amount of signaling consumption and the harmful effect brought thus.
Below general principle of the present invention is described in conjunction with specific embodiments, but, it is to be noted, for those of ordinary skill in the art, whole or any step or the parts of method and apparatus of the present invention can be understood, can in the network of any calculation element (comprising processor, storage medium etc.) or calculation element, realized with hardware, firmware, software or their combination, this is that those of ordinary skill in the art use their basic programming skill just can realize when having read explanation of the present invention.
Therefore, object of the present invention can also be realized by an operation program or batch processing on any calculation element.Described calculation element can be known fexible unit.Therefore, object of the present invention also can realize only by the program product of providing package containing the program code realizing described method or device.That is, such program product also forms the present invention, and the storage medium storing such program product also forms the present invention.Obviously, described storage medium can be any storage medium developed in any known storage medium or future.
According to another embodiment of the present invention, additionally provide a kind of storage medium (this storage medium can be ROM, RAM, hard disk, detachable memory etc.), the computer program of UCI transmission is carried out when being embedded with in this storage medium for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, this computer program has to be arranged to and performs the code segment of following steps: when there is PUSCH transmission on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; Generate UCI, and the PUSCH transmission UCI by determining.
According to another embodiment of the present invention, additionally provide a kind of storage medium (this storage medium can be ROM, RAM, hard disk, detachable memory etc.), the computer program of UCI reception is carried out when being embedded with in this storage medium for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, this computer program has to be arranged to and performs the code segment of following steps: when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; UCI is received by the PUSCH determined.
According to another embodiment of the present invention, additionally provide a kind of computer program, this computer program has to be arranged to and performs the code segment of following UCI forwarding step when UE has been configured at least one TDD carrier wave and at least one FDD carrier wave: when there is PUSCH transmission on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; Generate UCI, and the PUSCH transmission UCI by determining.
According to another embodiment of the present invention, additionally provide a kind of computer program, this computer program has to be arranged to and performs the code segment of following UCI receiving step when UE has been configured at least one TDD carrier wave and at least one FDD carrier wave: when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on TDD carrier wave is for transmitting UCI; UCI is received by the PUSCH determined.
When realizing embodiments of the invention by software and/or firmware, from storage medium or network to the computer with specialized hardware structure, the program forming this software installed by all-purpose computer 1000 such as shown in Figure 10, this computer, when being provided with various program, can perform various function etc.
In Fig. 10, central processing module (CPU) 1001 performs various process according to the program stored in read-only memory (ROM) 1002 or from the program that storage area 1008 is loaded into random-access memory (ram) 1003.In RAM1003, also store the data required when CPU1001 performs various process etc. as required.CPU1001, ROM1002 and RAM1003 are connected to each other via bus 1004.Input/output interface 1005 is also connected to bus 1004.
Following parts are connected to input/output interface 1005: importation 1006, comprise keyboard, mouse etc.; Output 1007, comprises display, such as cathode ray tube (CRT), liquid crystal display (LCD) etc., and loud speaker etc.; Storage area 1008, comprises hard disk etc.; With communications portion 1009, comprise network interface unit such as LAN card, modulator-demodulator etc.Communications portion 1009 is via network such as internet executive communication process.
As required, driver 1010 is also connected to input/output interface 1005.Detachable media 1011 such as disk, CD, magneto optical disk, semiconductor memory etc. are installed on driver 1010 as required, and the computer program therefrom read is installed in storage area 1008 as required.
When series of processes above-mentioned by software simulating, from network such as internet or storage medium, such as detachable media 1011 installs the program forming software.
It will be understood by those of skill in the art that this storage medium is not limited to wherein having program stored therein shown in Figure 10, distributes the detachable media 1011 to provide program to user separately with device.The example of detachable media 1011 comprises disk (comprising floppy disk (registered trade mark)), CD (comprising compact disc read-only memory (CD-ROM) and digital universal disc (DVD)), magneto optical disk (comprising mini-disk (MD) (registered trade mark)) and semiconductor memory.Or hard disk that storage medium can be ROM1002, comprise in storage area 1008 etc., wherein computer program stored, and user is distributed to together with comprising their device.
Also it is pointed out that in apparatus and method of the present invention, obviously, each parts or each step can decompose and/or reconfigure.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Further, the step performing above-mentioned series of processes can order naturally following the instructions perform in chronological order, but does not need necessarily to perform according to time sequencing.Some step can walk abreast or perform independently of one another.
Although described the present invention and a little in detail, be to be understood that and can have carried out various change when not departing from the spirit and scope of the present invention limited by appended claim, substituting and conversion.And, the term of the application " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or device.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising described key element and also there is other identical element.

Claims (23)

1. a sending method of ascending control information UCI, is characterized in that, send UCI for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, described sending method comprises:
Described TDD carrier wave exists PUSCH transmission, determine that a PUSCH on described TDD carrier wave is for transmitting UCI;
Generate UCI, and by UCI described in the described PUSCH transmission determined.
2. sending method according to claim 1, is characterized in that, multiple TDD carrier wave all exists PUSCH transmission, if described multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier is defined as the PUSCH for transmitting UCI.
3. sending method according to claim 1, is characterized in that,
Multiple TDD carrier wave all exists PUSCH transmission, select in described multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI; Or,
All there is PUSCH transmission in multiple TDD carrier wave and described multiple TDD carrier wave does not comprise main carrier, select in described multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.
4. sending method according to claim 3, is characterized in that, described predetermined policy comprise following one of at least:
The TDD carrier wave selecting carrier index maximum or minimum, the carrier wave selecting appointment to number.
5. sending method according to claim 1, is characterized in that, the TDD previous-next row configuration of described at least one carrier wave existed in the TDD carrier wave of PUSCH transmission or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6.
6. sending method according to claim 1, is characterized in that, the PUSCH on described at least one carrier wave existed in the TDD carrier wave of PUSCH transmission has corresponding PDCCH/EPDCCH.
7. sending method according to claim 6, is characterized in that, the TDD DCI format0/4 of the descending control information format DCI format that described PDCCH/EPDCCH uses for defining in LTE Rel-10/11.
8. sending method according to claim 1, is characterized in that, for the PDCCH/EPDCCH of execution cost PUSCH in TDD carrier wave or FDD carrier transmission.
9. sending method according to claim 8, is characterized in that, when described PDCCH/EPDCCH in TDD carrier transmission, the carrier wave transmitting described PDCCH/EPDCCH is identical or different with the carrier wave of the described PUSCH of transmission.
10. sending method according to claim 1, is characterized in that, when generating UCI, according to the indication information in the DAI territory in the PDCCH/EPDCCH that the described PUSCH determined is corresponding, determines the UCI needing to generate.
11. sending methods according to claim 10, is characterized in that,
The indication information in described DAI territory is used to indicate the dispatch situation of described TDD carrier wave and described FDD carrier wave and/or is used to indicate the need of sending the ACK/NACK feedback information corresponding to described TDD carrier wave and/or described FDD carrier wave; Or,
The indication information in described DAI territory is used to indicate the information determining the ACK/NACK feedback information sequence described TDD carrier wave needing send in current sub-frame of uplink; Or,
Described DAI territory is used to indicate the information for determining FDD carrier wave and TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.
The method of reseptance of 12. 1 kinds of ascending control information UCI, is characterized in that, receive UCI for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, described method of reseptance comprises:
When scheduled PUSCH and transmitting on TDD carrier wave, determine that a PUSCH on described TDD carrier wave is for transmitting UCI;
Described UCI is received by the described PUSCH determined.
13. method of reseptances according to claim 12, it is characterized in that, when scheduled multiple PUSCH and transmitting on multiple TDD carrier wave, if described multiple TDD carrier wave comprises main carrier, then the PUSCH on this main carrier is defined as the PUSCH for transmitting UCI.
14. method of reseptances according to claim 12, it is characterized in that, when scheduled multiple PUSCH and transmitting on multiple TDD carrier wave, then select in described multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI; Or,
When scheduled multiple PUSCH transmit on multiple TDD carrier wave and described multiple TDD carrier wave does not comprise main carrier, select in described multiple TDD carrier wave according to predetermined policy, the PUSCH on the TDD carrier wave of selection is defined as the PUSCH for transmitting UCI.
15. method of reseptances according to claim 14, is characterized in that, described predetermined policy comprise following one of at least:
The TDD carrier wave selecting carrier index maximum or minimum, the carrier wave selecting appointment to number.
16. method of reseptances according to claim 12, it is characterized in that, described in the TDD previous-next row configuration of at least one carrier wave that has been scheduled in the TDD carrier wave of PUSCH transmission or up of being configured to reference to TDD previous-next row in configuration 1,2,3,4,5,6.
17. method of reseptances according to claim 12, is characterized in that, described in PUSCH at least one carrier wave of being scheduled in the TDD carrier wave of PUSCH transmission have corresponding PDCCH/EPDCCH.
18. method of reseptances according to claim 17, is characterized in that, the TDD DCI format0/4 of the descending control information format DCI format that described PDCCH/EPDCCH uses for defining in LTE Rel-10/11.
19. method of reseptances according to claim 12, is characterized in that, for the PDCCH/EPDCCH of execution cost PUSCH in TDD carrier wave or FDD carrier transmission.
20. method of reseptances according to claim 19, is characterized in that, when described PDCCH/EPDCCH in TDD carrier transmission, the carrier wave transmitting described PDCCH/EPDCCH is identical or different with the carrier wave of the described PUSCH of transmission.
21. method of reseptances according to claim 12, it is characterized in that, by the indication information for dispatching the DAI territory in the PDCCH/EPDCCH of PUSCH, indicating the dispatch situation of described TDD carrier wave and described FDD carrier wave and/or being used to indicate the need of sending the ACK/NACK feedback information corresponding to described TDD carrier wave and/or described FDD carrier wave; Or,
By the indication information for dispatching the DAI territory in the PDCCH/EPDCCH of PUSCH, the information of the ACK/NACK feedback information sequence described TDD carrier wave needing send in current sub-frame of uplink is determined in instruction; Or,
Described DAI territory is used to indicate the information for determining FDD carrier wave and TDD carrier wave need in current sub-frame of uplink the descending sub frame number carrying out ACK/NACK feedback.
The dispensing device of 22. 1 kinds of ascending control information UCI, is characterized in that, send UCI for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, described dispensing device comprises:
Determination module, described TDD carrier wave exists PUSCH transmission, determines that a PUSCH on described TDD carrier wave is for transmitting UCI;
Sending module, for generating UCI, and by UCI described in the described PUSCH transmission determined.
The receiving system of 23. 1 kinds of ascending control information UCI, is characterized in that, receive UCI for being configured at least one TDD carrier wave and at least one FDD carrier wave at UE, described receiving system comprises:
Determination module, for when scheduled PUSCH and transmitting on TDD carrier wave, determines that a PUSCH on described TDD carrier wave is for transmitting UCI;
Receiver module, receives described UCI for the described PUSCH by determining.
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