CN102647261A - Scheduling signaling sending and response feedback method, system and equipment - Google Patents

Scheduling signaling sending and response feedback method, system and equipment Download PDF

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Publication number
CN102647261A
CN102647261A CN201110049742XA CN201110049742A CN102647261A CN 102647261 A CN102647261 A CN 102647261A CN 201110049742X A CN201110049742X A CN 201110049742XA CN 201110049742 A CN201110049742 A CN 201110049742A CN 102647261 A CN102647261 A CN 102647261A
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data packet
downlink data
scheduling signaling
descending
terminal
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CN102647261B (en
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林亚男
沈祖康
高雪娟
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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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Priority to PCT/CN2011/072460 priority patent/WO2011124127A1/en
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    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

Abstract

The invention discloses a scheduling signaling sending and response feedback method, system and equipment, relating to the field of wireless communication and being used for increasing the transmission efficiency of a multicarrier polymerization system. In the method, a base station carries counting information into a downlink scheduling signaling to be sent to a terminal and carries the transmission situation information of a downlink data packet into an uplink scheduling signaling to be sent to the terminal; the terminal determines the length of an acknowledgement /negative acknowledgement ACK/NACK sequence needing to be sent in an uplink subframe according to the transmission situation information of the downlink data packet, and the terminal determines the position of the ACK/NACK information corresponding to the downlink data packet in the ACK/NACK sequence according to the counting information; and the ACK/NACK sequence is generated according to the length and position information, and the ACK/NACK sequence is sent to the base station. The transmission efficiency of the multicarrier polymerization system can be increased through the method, the system and the equipment.

Description

Method, system and the equipment of dispatch transmission and response feedback
Technical field
The present invention relates to wireless communication field, relate in particular to method, system and the equipment of a kind of dispatch transmission and response feedback.
Background technology
For long-term evolution multi-carrier system, for supporting that such as 100MHz, a kind of possibly be the frequency spectrum that directly distributes the 100M bandwidth, as shown in Figure 1 than the wideer system bandwidth of Long Term Evolution (LTE) system; A kind of possibly be with distributing to some spectrum aggregatings of existing systems; Gather into big bandwidth and supply with the long-term evolution multi-carrier system use; The up-downgoing carrier wave can asymmetricly dispose in the system at this moment; Be that the user may take N >=1 carrier wave and carries out downlink transfer, M >=1 carrier wave carries out uplink, and is as shown in Figure 2.When the data on each descending carrier are independently carried out coding and decoding, the user will mix automatic repeat requests (HARQ) (being answering/no answering (ACK/NACK) information) feedback respectively to the packet on each carrier wave.Therefore, the user maybe be simultaneously to a plurality of ACK/NACK information of base station feedback in a sub-frame of uplink.
In LTE version 8 (Rel 8) system, when terminal (UE) will be in same subframe simultaneously when transmit ascending data and ACK/NACK feedback information, then the ACK/NACK information ad hoc resources that will take in the Physical Uplink Shared Channel (PUSCH) transmits.For FDD (FDD) system, can feed back 2 bit informations at most at every turn, for time division duplex (TDD) system, can feed back 4 bit informations at most at every turn.
In LTE version 10 (Rel 10) system, can continue to use the method in Rel 8 systems, use PUSCH transmit ascending data and ACK/NACK simultaneously; Also can in same subframe, transmit PUSCH and Physical Uplink Control Channel (PUCCH) simultaneously; PUCCH format 2/2a/2b transmits many bit ACK/NACK in this moment reusable Rel 8 systems; Also can introduce simultaneously new PUCCH structure; To carry jumbo ascending control information, comprise channel quality indication (CQI), ACK/NACK etc.
Long-term evolution upgrading (LTE-A) system confirms to support 5 carrier waves to carry out polymerization at most at present.Need in same subframe, carry out a plurality of descending carriers and the descending sub frame of ACK/NACK feedback, abbreviate " feedback window " hereinafter as.For the FDD system, the descending carrier quantity N of the big or small L=UE polymerization of feedback window.For the TDD system, the big or small L=N * M of feedback window, wherein N is the descending carrier number of UE polymerization; The descending sub frame quantity that the M correspondence is fed back at same sub-frame of uplink; For different uplink-downlink configuration and sub-frame of uplink, the value of M is different, i.e. the quantity of each hurdle K in the table 1.
Figure BDA0000048416720000021
Table 1
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
In multi-carrier aggregation system; When base station side dynamic dispatching PUSCH and many bit ACK/NACK transmit in same sub-frame of uplink; The bit number of the ACK/NACK the sequence how terminal is confirmed in this sub-frame of uplink, to send does not also have concrete implementation, makes the efficiency of transmission of multi-carrier aggregation system receive influence.
Summary of the invention
The embodiment of the invention provides dispatch sending method and a kind of base station in a kind of multi-carrier aggregation system, is used for solving the problem of the ACK/NACK information of ACK/NACK sequence length that the multi-carrier aggregation system terminal can't obtain to be used for to confirm that needs send and downlink data packet correspondence in the information of ACK/NACK sequence position.
Dispatch sending method in a kind of multi-carrier aggregation system, this method comprises:
The base station need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
When the base station needs dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said count information is the information that the terminal is used for confirming answering/no answering ACK/NACK information position in the ACK/NACK sequence that said sub-frame of uplink sends that downlink data packet that said descending scheduling signaling dispatched is corresponding; Said downlink data packet transmission situation information is to be used for the information that the length of said ACK/NACK sequence is confirmed at the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal.
A kind of base station, this base station comprises:
Descending scheduling signaling transmitting element, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Uplink scheduling signaling transmitting element; Needing to be used for dispatch terminal when the corresponding sub-frame of uplink of current feedback window sends Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said count information is the information that the terminal is used for confirming answering/no answering ACK/NACK information position in the ACK/NACK sequence that said sub-frame of uplink sends that downlink data packet that said descending scheduling signaling dispatched is corresponding; Said downlink data packet transmission situation information is to be used for the information that the length of said ACK/NACK sequence is confirmed at the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal.
In this programme, the base station is carried at the descending scheduling signaling with count information and sends to the terminal, downlink data packet is transmitted situation information be carried in the uplink scheduling signaling and send to the terminal.Thus it is clear that, adopt the information of the ACK/NACK information of ACK/NACK sequence length that terminal in this programme multi-carrier aggregation system can obtain to be used for to confirm that needs send and downlink data packet correspondence in the position of ACK/NACK sequence.
The embodiment of the invention also provides the response feedback method in a kind of multi-carrier aggregation system, a kind of terminal and a kind of LTE-A communication system, is used to improve the efficiency of transmission of multi-carrier aggregation system.
Response feedback method in a kind of multi-carrier aggregation system, this method comprises:
The terminal receives the descending scheduling signaling of this terminal downlink data receiving bag of scheduling of in current feedback window, sending the base station, and this terminal of scheduling of sending, base station uplink scheduling signaling of in the corresponding sub-frame of uplink of current feedback window, sending Physical Uplink Shared Channel PUSCH; Carry count information in the said descending scheduling signaling, carry the downlink data packet transmission situation information in the said current feedback window in the said uplink scheduling signaling;
Situation information is confirmed the answering/no answering ACK/NACK sequence that needs send in said sub-frame of uplink length is transmitted according to said downlink data packet in the terminal, confirms the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information;
The terminal generates the ACK/NACK sequence according to length of confirming and positional information, and this ACK/NACK sequence is sent to the base station.
A kind of terminal, this terminal comprises:
The dispatch receiving element; Be used to receive the descending scheduling signaling of this terminal downlink data receiving bag of scheduling of in current feedback window, sending the base station, and this terminal of scheduling of sending, base station uplink scheduling signaling of in the corresponding sub-frame of uplink of current feedback window, sending Physical Uplink Shared Channel PUSCH; Carry count information in the said descending scheduling signaling, carry the downlink data packet transmission situation information in the said current feedback window in the said uplink scheduling signaling;
The feedback sequence extension position is confirmed the unit; Be used for confirming the length of the answering/no answering ACK/NACK sequence that needs send at said sub-frame of uplink, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information according to said downlink data packet transmission situation information;
The feedback sequence transmitting element is used for confirming that according to said feedback sequence extension position length and positional information that the unit is confirmed generate the ACK/NACK sequence, and this ACK/NACK sequence is sent to the base station.
A kind of long-term evolution upgrading LTE-A communication system, this system comprises:
The base station, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal; When needing dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal;
The terminal; Be used to receive said uplink scheduling signaling and descending scheduling signaling; Transmit situation information is confirmed the answering/no answering ACK/NACK sequence that needs send in said sub-frame of uplink length according to said downlink data packet, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information; Generate the ACK/NACK sequence according to length of confirming and positional information, and this ACK/NACK sequence is sent to the base station.
In this programme; The terminal can be confirmed the length of the receiving feedback information sequence that needs send according to the downlink data packet transmission situation information of carrying in the uplink scheduling signaling in sub-frame of uplink; Confirm the position of ACK/NACK information in the ACK/NACK sequence that downlink data packet is corresponding according to the count information that carries in the descending scheduling signaling; Thereby generate the ACK/NACK sequence and send to the base station according to length of confirming and positional information, can effectively improve the efficiency of transmission of system.
Description of drawings
Fig. 1 is a single-frequency spectral system schematic of the prior art;
Fig. 2 is a spectrum aggregating system schematic of the prior art;
The method flow sketch map that Fig. 3 provides for the embodiment of the invention;
Fig. 4 A is the PDSCH scheduling sketch map in the embodiment of the invention one;
Fig. 4 B is the corresponding sketch map of the ACK/NACK sequence in the embodiment of the invention one;
Fig. 4 C is the corresponding sketch map of another ACK/NACK sequence in the embodiment of the invention one;
Fig. 4 D is the corresponding sketch map of the ACK/NACK sequence in the embodiment of the invention two;
Fig. 4 E is the corresponding sketch map of another ACK/NACK sequence in the embodiment of the invention two;
Fig. 4 F is the corresponding sketch map of another ACK/NACK sequence in the embodiment of the invention three;
The system configuration sketch map that Fig. 5 provides for the embodiment of the invention;
The architecture of base station sketch map that Fig. 6 provides for the embodiment of the invention;
The terminal structure sketch map that Fig. 7 provides for the embodiment of the invention.
Embodiment
In order to make UE in the multi-carrier aggregation system when same sub-frame of uplink sends the corresponding ACK/NACK information of packet on a plurality of descending carriers; Can confirm to carry length ACK/NACK information the position in ACK/NACK sequence corresponding of the ACK/NACK sequence of these ACK/NACK information with each packet; Thereby improve the efficiency of transmission of system; The embodiment of the invention provides the transmission and the response feedback method of the dispatch in a kind of multi-carrier aggregation system; In this method; Situation information is confirmed the ACK/NACK sequence that needs send in sub-frame of uplink length is transmitted according to the downlink data packet in the uplink scheduling signaling in the terminal, confirms the position of ACK/NACK information in the ACK/NACK sequence that downlink data packet is corresponding according to the count information in the descending scheduling signaling.
Referring to Fig. 3, the transmission of the uplink scheduling signaling in the multi-carrier aggregation system that the embodiment of the invention provides and reception feedback method specifically may further comprise the steps:
Step 30: when the base station needs dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send PUSCH, confirm the downlink data packet transmission situation in the current feedback window; Current feedback window comprises the descending sub frame that need in said sub-frame of uplink, send the packet receiving feedback information on a plurality of downlink member carriers of supporting at the terminal;
Here; Downlink data packet transmission situation in the current feedback window is meant that current feedback window comprises the downlink data packet transmission situation on the downlink transfer resource, and the descending sub frame that need in said sub-frame of uplink, send the packet receiving feedback information on a plurality of downlink member carriers of the downlink transfer resource that is comprised in the current feedback window by the terminal support constitutes.Need in sub-frame of uplink, send the descending sub frame of packet receiving feedback information, be meant that the terminal need be sent in the receiving feedback information of the downlink data packet that receives in this descending sub frame in this sub-frame of uplink.Need in certain sub-frame of uplink, be sent in the receiving feedback information of the downlink data packet that receives in which descending sub frame, can confirm according to table 1.
For FDD and TDD system, the downlink member carrier in the feedback window is for being in the downlink member carrier of state of activation in a plurality of downlink member carriers in the downlink member carrier set of configuration or the downlink member carrier set.
The corresponding sub-frame of uplink of current feedback window is meant the corresponding sub-frame of uplink of descending sub frame that current feedback window comprises, and this corresponding relation preestablishes.
If a plurality of uplink scheduling signalings are sent to said terminal in the base station in a descending sub frame, the value that then is carried at the said downlink data packet transmission situation information in each uplink scheduling signaling is identical.
Step 31: the information of downlink data packet transmission situation is carried in the uplink scheduling signaling (UL grant) in the current feedback window that the base station will be confirmed, and this uplink scheduling signaling is sent to the terminal;
Step 32: the terminal receives said uplink scheduling signaling, confirms the length of the receiving feedback information sequence that needs send in said sub-frame of uplink according to said downlink data packet transmission situation information;
Step 33: the receiving feedback information sequence with said length is sent at the terminal to the base station.
In base station side:
In the step 30, the downlink data packet transmission situation in the current feedback window is confirmed in the base station, and its concrete realization can be adopted following two kinds:
First kind, the total number of the descending sub frame of downlink data packet scheduled transmission is confirmed to have carried out in the current feedback window in the base station, with the total number information of this descending sub frame as the transmission of the downlink data packet in the feedback window before settled situation information.
Second kind, the total number of the downlink data packet of scheduled transmission in the current feedback window is confirmed in the base station, and the total number information of this downlink data packet is transmitted situation information as the downlink data packet in the feedback window before settled.
Preferable; When above-mentioned first kind of mode; The corresponding position of receiving feedback information in the receiving feedback information sequence of each downlink data packet of sending in the current feedback window in order to make the terminal to confirm; The base station can also be at needs in current feedback window during dispatch terminal downlink data receiving bag; Send the descending scheduling signaling (DL grant) carry count information to the terminal, the descending sub frame that this count information representes to send this downlink data packet is which descending sub frame that carries out the downlink data packet scheduled transmission in the current feedback window.
The transmission of descending scheduling signaling can be sent in same subframe before the transmission of uplink scheduling signaling or with said uplink scheduling signaling.
Same; When the above-mentioned second way; The corresponding position of receiving feedback information in the receiving feedback information sequence of each downlink data packet of sending in the current feedback window in order to make the terminal to confirm; The base station can also be at needs in current feedback window during dispatch terminal downlink data receiving bag; Send the descending scheduling signaling of carrying count information to the terminal, this count information representes that the downlink data packet that this descending scheduling signaling is dispatched is which downlink data packet of scheduled transmission in the said feedback window.
The transmission of descending scheduling signaling can be sent in same subframe before the transmission of uplink scheduling signaling or with said uplink scheduling signaling.
Above-mentioned count information can be carried in the DAI territory of descending scheduling signaling.Accordingly, the terminal obtains count information in the DAI territory from the descending scheduling signaling.
In the step 31, the base station can be carried at the information of downlink data packet transmission situation in the current feedback window of confirming the descending allocation identification of uplink scheduling signaling, and (Downlink Assignment Index is DAI) in the territory.Accordingly, the terminal obtains the downlink data packet transmission situation information in the feedback window in the DAI territory from the uplink scheduling signaling.
If a plurality of uplink scheduling signalings are sent to said terminal in the base station in a descending sub frame, then the value in the DAI territory in each uplink scheduling signaling is identical.
In end side:
In the step 32; If the downlink data packet of carrying in uplink scheduling signaling transmission situation information is the total number that has carried out the descending sub frame of downlink data packet scheduled transmission in the feedback window; Then situation information is confirmed the receiving feedback information sequence that needs send in said sub-frame of uplink length is transmitted according to this downlink data packet in the terminal, and its concrete realization can be following:
The bit number Q that the terminal comprises according to definite answering/no answering (ACK/NACK) sequence that need in said sub-frame of uplink, send of following formula:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
Figure BDA0000048416720000091
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
Accordingly, in the step 33, the receiving feedback information sequence with said length is sent to the base station in the terminal, and its concrete realization can be following:
The terminal receives the descending scheduling signaling that the descending sub frame in the feedback window is sent, and carries count information in this descending scheduling signaling, and this count information representes that this descending sub frame is which descending sub frame that carries out the downlink data packet scheduled transmission in the said feedback window; The terminal can receive the descending scheduling signaling before the terminal receives the uplink scheduling signaling or in the descending sub frame that sends the uplink scheduling signaling.The corresponding bit position of ACK/NACK information in the ACK/NACK sequence of downlink data packet that each descending scheduling signaling is dispatched confirmed according to the count information in each the descending scheduling signaling that receives in the terminal.The reception condition of the downlink data packet that the bit position that the terminal basis is confirmed and each descending scheduling signaling are dispatched, generating bit number is the ACK/NACK sequence of Q, and this ACK/NACK sequence is sent to the base station.
Concrete, the Q bit in the ACK/NACK sequence is divided into the M part; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part.
For example; Like Fig. 4 A and Fig. 4 B, the total number that has carried out the descending sub frame of downlink data packet scheduled transmission in the feedback window is 2, and the bit number of the ACK/NACK sequence that the terminal is confirmed in view of the above is 6; The count information value of carrying in the descending scheduling signaling that receives on first descending sub frame of the descending carrier 1 in feedback window is 1; The count information value of carrying in the descending scheduling signaling that receives on first descending sub frame of the descending carrier 2 in feedback window is 1, and the count information value of carrying in the descending scheduling signaling that receives on the 3rd descending sub frame of the descending carrier 2 in feedback window is 2,6 bit ACK that then need send/NACK sequence { b0; B1; ..., among the b5}, b0 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on first descending sub frame of the descending carrier 1 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b0 can be set to represent 0 of ACK, if the terminal does not correctly receive this downlink data packet, then b0 can be set to represent 1 of NACK; B1 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on first descending sub frame of the descending carrier 2 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b1 can be set to represent 0 of ACK; If the terminal does not correctly receive this downlink data packet, then b1 can be set to represent 1 of NACK; Because do not receive downlink data packet on first descending sub frame of the descending carrier in feedback window 3, then b2 is set to represent 1 of NACK; Because do not receive downlink data packet on the 3rd descending sub frame of the descending carrier in feedback window 1, then b3 is set to represent 1 of NACK; B4 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on the 3rd descending sub frame of the descending carrier 2 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b4 can be set to represent 0 of ACK; If the terminal does not correctly receive this downlink data packet, then b4 can be set to represent 1 of NACK; Because do not receive downlink data packet on the 3rd descending sub frame of the descending carrier in feedback window 3, then b5 is set to represent 1 of NACK.
Or; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part
Figure BDA0000048416720000101
With
Figure BDA0000048416720000111
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
In the step 32; If the downlink data packet of carrying in uplink scheduling signaling transmission situation information is the total number of the downlink data packet of scheduled transmission in the feedback window; Then situation information is confirmed the receiving feedback information sequence that needs send in said sub-frame of uplink length is transmitted according to this downlink data packet in the terminal, and its concrete realization can be following:
The bit number Q that the terminal comprises according to the definite ACK/NACK sequence that need in said sub-frame of uplink, send of following formula:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
Accordingly, in the step 33, the receiving feedback information sequence with said length is sent to the base station in the terminal, and its concrete realization can be following:
The terminal receives the descending scheduling signaling that the descending sub frame in the said feedback window is sent; Carry count information in this descending scheduling signaling, this count information representes that the downlink data packet that this descending scheduling signaling is dispatched is which downlink data packet of scheduled transmission in the said feedback window; The terminal can receive the descending scheduling signaling before the terminal receives the uplink scheduling signaling or in the descending sub frame that sends the uplink scheduling signaling.The corresponding bit position of ACK/NAC information in the ACK/NACK sequence of downlink data packet that each descending scheduling signaling is dispatched confirmed according to the count information in each the descending scheduling signaling that receives in the terminal.The reception condition of the downlink data packet that the bit position that the terminal basis is confirmed and said each descending scheduling signaling are dispatched, generating bit number is the ACK/NACK sequence of Q, and this ACK/NACK sequence is sent to the base station.
Concrete, if the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
For example; For example, like Fig. 4 A and Fig. 4 D, the total number of the downlink data packet of scheduled transmission is 3 in the feedback window; The bit number of the ACK/NACK sequence that the terminal is confirmed in view of the above is 3; The count information value of carrying in the descending scheduling signaling that receives on first descending sub frame of the descending carrier 1 in feedback window is 1, and the count information value of carrying in the descending scheduling signaling that receives on first descending sub frame of the descending carrier 2 in feedback window is 2, and the count information value of carrying in the descending scheduling signaling that receives on the 3rd descending sub frame of the descending carrier 2 in feedback window is 3; 3 bit ACK that then need send/NACK sequence { b0; B1, among the b2}, b0 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on first descending sub frame of the descending carrier 1 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b0 can be set to represent 0 of ACK, if the terminal does not correctly receive this downlink data packet, then b0 can be set to represent 1 of NACK; B1 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on first descending sub frame of the descending carrier 2 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b1 can be set to represent 0 of ACK; If the terminal does not correctly receive this downlink data packet, then b1 can be set to represent 1 of NACK; B2 is used to be carried on the corresponding receiving feedback information of downlink data packet that the descending scheduling signaling that receives on the 3rd descending sub frame of the descending carrier 2 in the feedback window is dispatched; If the terminal correctly receives this downlink data packet; Then b2 can be set to represent 0 of ACK; If the terminal does not correctly receive this downlink data packet, then b2 can be set to represent 1 of NACK.
The present invention will be described with specific embodiment below:
When carrying out the multiplexing feedback of many bit ACK/NACK, for the sub-frame of uplink that UL grant scheduling is arranged, the bit number of the ACK/NACK that UE transmits in this subframe will be confirmed according to the DAI among the UL grant.
Method one: use the descending sub frame number M that the data packet dispatching transmission is arranged in the DAI indication feedback window among the UL grant, 2 bit DAI among the reusable R8 TDD UL grant, M=2 in the instance shown in Fig. 4 A.UE will feed back the ACK/NACK information of C * N * M bit in the sub-frame of uplink of correspondence, wherein C is code word number (C=1 during the single codeword transmission, C=2 during many codeword transmission), and N is the number of carriers in the descending carrier set of configuration or the number of carriers of activation.Wherein the running time-frequency resource correspondence of free of data transmission is fed back NACK.
DAI among the DL grant is then as counter; The subframe of expression current scheduling data packet transmission is the subframe of which this UE transfer of data of scheduling in the feedback transmission; As for DAI=1 among the pairing DL grant of PDSCH1 and PDSCH2 among Fig. 4 A, DAI=2 among the pairing DL grant of PDSCH3.
Embodiment one:
If UE carries out the single codeword transmission, the descending carrier set of its configuration is for { descending carrier 3}, the carrier wave that wherein activates are descending carrier 1 and descending carrier 2 for descending carrier 1, descending carrier 2.
If N is the number of carriers in the descending carrier set of configuration, then UE to feed back 6 bit ACK/nack message b0, b1 ..., b5}, wherein b2, b3, b5 are NACK, shown in Fig. 4 B.
If N is the activation number of carriers in the descending carrier set of configuration, then UE to feed back 4 bit ACK/nack message b0, b1, b2, b3}, wherein b2 is NACK, shown in Fig. 4 C.
Method two: use the packet sum M of scheduled transmission in the DAI indication feedback window among the UL grant, available 5 bit DAI indicate M=3 in the instance shown in Fig. 4 A.UE will feed back the ACK/NACK information of C * M bit in the sub-frame of uplink of correspondence, wherein C is code word number (C=1 during the single codeword transmission, C=2 during many codeword transmission).
DAI among the DL grant is then as counter; Expression current scheduling packet is which packet that belongs to this UE in the feedback transmission; Its numeration order is carried out according to the order of time domain behind the first frequency domain; As for DAI=1 among the pairing DL grant of PDSCH1 among Fig. 4 A, DAI=2 among the pairing DL grant of PDSCH2, DAI=3 among the pairing DL grant of PDSCH3.The ACK/NACK information that UE can confirm the corresponding data bag according to the DAI among the DL grant shared position in the feedback information sequence.If finding has data-bag lost, then feed back NACK.
Embodiment two:
If UE carries out the single codeword transmission, the DAI=3 among the UL grant, then { b2} is shown in Fig. 4 D for b0, b1 to base station feedback 3 bit ACK/nack message for UE.
Method three: use the descending sub frame number M that the data packet dispatching transmission is arranged in the DAI indication feedback window among the UL grant, 2 bit DAI among the reusable R8 TDD UL grant, M=2 in the instance shown in Fig. 4 E.UE will feed back in the sub-frame of uplink of correspondence
Figure BDA0000048416720000131
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number of downlink member carrier in the downlink member carrier set of terminal configuration or the number of carriers of activation; C on the un-activation carrier wave nBe 1; Wherein the resource correspondence of free of data transmission is fed back NACK.
DAI among the DL grant is then as counter; The subframe of expression current scheduling data packet transmission is the subframe of which this UE transfer of data of scheduling in the feedback transmission; As for DAI=1 among the pairing DL grant of PDSCH1 and PDSCH2 among Fig. 4 A, DAI=2 among the pairing DL grant of PDSCH3.
Embodiment three:
If the set of the descending carrier of UE configuration for descending carrier 1, descending carrier 2, descending carrier 3}, the carrier wave that wherein activates is descending carrier 1 and descending carrier 2, and transmits for single codeword on the descending carrier 1, is many codeword transmission on the descending carrier 2.
If N is the number of carriers in the descending carrier set of configuration, then UE to feed back 8 bit ACK/nack message b0, b1 ..., b7}, wherein b3, b4, b7 are NACK, shown in Fig. 4 E.
If N is the activation number of carriers in the descending carrier set of configuration, then UE to feed back 6 bit ACK/nack message b0, b1 ..., b5}, wherein b3 is NACK, shown in Fig. 4 F.
For above-mentioned three kinds of methods; The free of data scheduling on which resource because base station end knows for sure; Know promptly in the feedback sequence that feedback information corresponding on which position is NACK, therefore receiving, during the feedback information of demodulation UE, can the information of correspondence deciphered as Given information; Thereby can reduce actual code rate, improve the reliability of feedback information.
Referring to Fig. 5, the embodiment of the invention also provides a kind of LTE-A communication system, and this system comprises:
Base station 50, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal; When needing dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal;
Terminal 51; Be used to receive said uplink scheduling signaling and descending scheduling signaling; Transmit situation information is confirmed the answering/no answering ACK/NACK sequence that needs send in said sub-frame of uplink length according to said downlink data packet, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information; Generate the ACK/NACK sequence according to length of confirming and positional information, and this ACK/NACK sequence is sent to the base station.
Said base station 50 is used for:
The total number of the descending sub frame that has carried out the downlink data packet scheduled transmission in the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said terminal 51 is used for:
The bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
Figure BDA0000048416720000151
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
Said base station 50 is used for:
With the descending sub frame of representing the downlink data packet that the said descending scheduling signaling of transmission is dispatched is that the count information that carries out which descending sub frame of downlink data packet scheduled transmission in the said feedback window is carried in the said descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Said terminal 51 is used for:
Q bit in the said ACK/NACK sequence is divided into the M part;
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part.
Or; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part
Figure BDA0000048416720000161
With
Figure BDA0000048416720000162
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
Said base station 50 is used for:
The total number of the downlink data packet of scheduled transmission in the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said terminal 51 is used for:
The bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises, and to send bit number to the base station be the ACK/NACK sequence of Q:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
Said base station 50 is used for:
With the said descending scheduling signaling of the expression downlink data packet of being dispatched is that the count information of which downlink data packet of scheduled transmission in the said feedback window is carried in the said descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Said terminal 51 is used for:
If the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
Said base station 50 is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value that is carried at the downlink data packet transmission situation information in each uplink scheduling signaling was identical in a descending sub frame.
Referring to Fig. 6, the embodiment of the invention also provides a kind of base station, can be applied in the above-mentioned LTE-A communication system, and this base station comprises:
Descending scheduling signaling transmitting element 60, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Uplink scheduling signaling transmitting element 61; Needing to be used for dispatch terminal when the corresponding sub-frame of uplink of current feedback window sends Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said count information is the information that the terminal is used for confirming answering/no answering ACK/NACK information position in the ACK/NACK sequence that said sub-frame of uplink sends that downlink data packet that said descending scheduling signaling dispatched is corresponding; Said downlink data packet transmission situation information is to be used for the information that the length of said ACK/NACK sequence is confirmed at the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal.
Said uplink scheduling signaling transmitting element 61 is used for:
The total number of the downlink data packet of scheduled transmission in the total number of the descending sub frame that has carried out the downlink data packet scheduled transmission in the current feedback window or the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal.
Said uplink scheduling signaling transmitting element 61 is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value that is carried at the downlink data packet transmission situation information in each uplink scheduling signaling was identical in a descending sub frame.
Said descending scheduling signaling transmitting element 60 is used for:
When the total number that has carried out the descending sub frame of downlink data packet scheduled transmission in current feedback window at said uplink scheduling signaling transmitting element is carried in the uplink scheduling signaling; With the descending sub frame of representing the downlink data packet that the said descending scheduling signaling of transmission is dispatched is that the count information that carries out which descending sub frame of downlink data packet scheduled transmission in the said feedback window is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal.
Said descending scheduling signaling transmitting element 60 is used for:
Said uplink scheduling signaling transmitting element with current feedback window in the total number of downlink data packet of scheduled transmission when being carried in the uplink scheduling signaling; With the said descending scheduling signaling of the expression downlink data packet of being dispatched is that the count information of which downlink data packet of scheduled transmission in the said feedback window is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal.
Said uplink scheduling signaling transmitting element 61 is used for:
Downlink data packet in the current feedback window of confirming transmission situation information is carried in the descending allocation identification DAI territory of uplink scheduling signaling;
Said uplink scheduling signaling transmitting element 61 is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value in the DAI territory in each uplink scheduling signaling was identical in a descending sub frame.
Said descending scheduling signaling transmitting element 60 is used for:
Said count information is carried in the DAI territory of said descending scheduling signaling.
A plurality of downlink member carriers that said terminal is supported are:
Network side is a plurality of downlink member carriers during the downlink member carrier of terminal configuration is gathered; Perhaps,
Network side is a plurality of downlink member carriers that are in state of activation during the downlink member carrier of terminal configuration is gathered.
Referring to Fig. 7, the embodiment of the invention also provides a kind of terminal, can be applied in the above-mentioned LTE-A communication system, and this terminal comprises:
Dispatch receiving element 70; Be used to receive the descending scheduling signaling of this terminal downlink data receiving bag of scheduling of in current feedback window, sending the base station, and Physical Uplink Shared Channel PUSCH is sent in this terminal of scheduling in the corresponding sub-frame of uplink of current feedback window uplink scheduling signaling is sent in the base station; Carry count information in the said descending scheduling signaling, carry the downlink data packet transmission situation information in the said current feedback window in the said uplink scheduling signaling;
The feedback sequence extension position is confirmed unit 71; Be used for confirming the length of the answering/no answering ACK/NACK sequence that needs send at said sub-frame of uplink, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information according to said downlink data packet transmission situation information;
Feedback sequence transmitting element 72 is used for confirming that according to said feedback sequence extension position length and positional information that the unit is confirmed generate the ACK/NACK sequence, and this ACK/NACK sequence is sent to the base station.
Said feedback sequence extension position confirms that unit 71 is used for:
In said downlink data packet transmission situation information is when having carried out the total number of descending sub frame of downlink data packet scheduled transmission in the said feedback window, the bit number Q that the answering/no answering ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
Said feedback sequence extension position confirms that unit 71 is used for:
The descending sub frame of representing to send the downlink data packet that said descending scheduling signaling dispatched at said count information is when carrying out which descending sub frame of downlink data packet scheduled transmission in the said feedback window, and the Q bit in the said ACK/NACK sequence is divided into the M part; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part
Or; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part
Figure BDA0000048416720000201
With
Figure BDA0000048416720000202
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
Said feedback sequence extension position confirms that unit 71 is used for:
When said downlink data packet transmission situation information is the total number of the downlink data packet of scheduled transmission in the said feedback window, the bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
Said feedback sequence extension position confirms that unit 71 is used for:
When said count information representes that downlink data packet that said descending scheduling signaling is dispatched is which downlink data packet of scheduled transmission in the said feedback window; If the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides; The terminal can be confirmed the length of the receiving feedback information sequence that needs send according to the downlink data packet transmission situation information of carrying in the uplink scheduling signaling in sub-frame of uplink; Confirm the position of ACK/NACK information in the ACK/NACK sequence that downlink data packet is corresponding according to the count information that carries in the descending scheduling signaling; Thereby generate the ACK/NACK sequence and send to the base station according to length of confirming and positional information, can effectively improve the efficiency of transmission of system.
UE confirms the method for the bit number of the ACK/NACK sequence that actual needs feeds back in the LTE-A system that use the present invention provides according to the DAI among the UL grant; Uplink control signaling efficiency of transmission in the effectively raising system, this method are applicable to FDD system and TDD system simultaneously.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (32)

1. the dispatch sending method in the multi-carrier aggregation system is characterized in that this method comprises:
The base station need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
When the base station needs dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said count information is the information that the terminal is used for confirming answering/no answering ACK/NACK information position in the ACK/NACK sequence that said sub-frame of uplink sends that downlink data packet that said descending scheduling signaling dispatched is corresponding; Said downlink data packet transmission situation information is to be used for the information that the length of said ACK/NACK sequence is confirmed at the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal.
2. the method for claim 1 is characterized in that, the downlink data packet transmission situation information in the said current feedback window is:
Carried out the total number of the descending sub frame of downlink data packet scheduled transmission in the current feedback window; Perhaps,
The total number of the downlink data packet of scheduled transmission in the current feedback window.
3. the method for claim 1 is characterized in that, when a plurality of uplink scheduling signaling was sent at said terminal, the value that is carried at the downlink data packet transmission situation information in each uplink scheduling signaling was identical in a descending sub frame in the base station.
4. method as claimed in claim 2; It is characterized in that; When downlink data packet in said current feedback window transmission situation information was the total number of said descending sub frame, said count information was represented: the descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is which descending sub frame that carries out the downlink data packet scheduled transmission in the said feedback window.
5. method as claimed in claim 2; It is characterized in that; When the downlink data packet transmission situation information in said current feedback window was the total number of said downlink data packet, said count information is represented: the downlink data packet that said descending scheduling signaling is dispatched was which downlink data packet of scheduled transmission in the said feedback window.
6. like arbitrary described method among the claim 1-5, it is characterized in that the base station is carried at the transmission of the downlink data packet in said current feedback window situation information in the descending allocation identification DAI territory of said uplink scheduling signaling;
The base station is carried at said count information in the DAI territory of said descending scheduling signaling.
7. method as claimed in claim 6 is characterized in that, when a plurality of uplink scheduling signaling was sent at said terminal, the value in the DAI territory in each uplink scheduling signaling was identical in a descending sub frame in the base station.
8. like arbitrary described method among the claim 1-5, it is characterized in that a plurality of downlink member carriers that said terminal is supported are:
Network side is a plurality of downlink member carriers during the downlink member carrier of terminal configuration is gathered; Perhaps,
Network side is a plurality of downlink member carriers that are in state of activation during the downlink member carrier of terminal configuration is gathered.
9. the response feedback method in the multi-carrier aggregation system is characterized in that this method comprises:
The terminal receives the descending scheduling signaling of this terminal downlink data receiving bag of scheduling of in current feedback window, sending the base station, and this terminal of scheduling of sending, base station uplink scheduling signaling of in the pairing sub-frame of uplink of current feedback window, sending Physical Uplink Shared Channel PUSCH; Carry count information in the said descending scheduling signaling, carry the downlink data packet transmission situation information in the said current feedback window in the said uplink scheduling signaling;
Situation information is confirmed the answering/no answering ACK/NACK sequence that needs send in said sub-frame of uplink length is transmitted according to said downlink data packet in the terminal, confirms the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information;
The terminal generates the ACK/NACK sequence according to length of confirming and positional information, and this ACK/NACK sequence is sent to the base station.
10. method as claimed in claim 9; It is characterized in that; In said downlink data packet transmission situation information is that said terminal confirms that according to said downlink data packet transmission situation information the length of the ACK/NACK sequence that needs send comprises when having carried out the total number of descending sub frame of downlink data packet scheduled transmission in the said current feedback window in said sub-frame of uplink:
The bit number Q that the terminal comprises according to the definite answering/no answering ACK/NACK sequence that need in said sub-frame of uplink, send of following formula:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
Figure FDA0000048416710000031
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
11. method as claimed in claim 10; It is characterized in that; The descending sub frame that said count information representes to send the downlink data packet that said descending scheduling signaling dispatched is which descending sub frame that carries out the downlink data packet scheduled transmission in the said feedback window, saidly confirms that according to said count information the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched comprises:
Q bit in the said ACK/NACK sequence is divided into the M part;
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part; Or,
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part
Figure FDA0000048416710000041
With
Figure FDA0000048416710000042
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
12. method as claimed in claim 9; It is characterized in that; When said downlink data packet transmission situation information was the total number of the downlink data packet of scheduled transmission in the said feedback window, said terminal confirmed that according to said downlink data packet transmission situation information the length of the ACK/NACK sequence that needs send comprises in said sub-frame of uplink:
The bit number Q that the terminal comprises according to the definite ACK/NACK sequence that need in said sub-frame of uplink, send of following formula:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
13. method as claimed in claim 12; It is characterized in that; Said count information representes that downlink data packet that said descending scheduling signaling is dispatched is which downlink data packet of scheduled transmission in the said feedback window, saidly confirms that according to said count information the position of ACK/NACK information in said ACK/NACK sequence of the downlink data packet correspondence that said descending scheduling signaling is dispatched comprises:
If the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
14. a base station is characterized in that, this base station comprises:
Descending scheduling signaling transmitting element, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Uplink scheduling signaling transmitting element; Needing to be used for dispatch terminal when the corresponding sub-frame of uplink of current feedback window sends Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said count information is the information that the terminal is used for confirming answering/no answering ACK/NACK information position in the ACK/NACK sequence that said sub-frame of uplink sends that downlink data packet that said descending scheduling signaling dispatched is corresponding; Said downlink data packet transmission situation information is to be used for the information that the length of said ACK/NACK sequence is confirmed at the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal.
15. base station as claimed in claim 14 is characterized in that, said uplink scheduling signaling transmitting element is used for:
The total number of the downlink data packet of scheduled transmission in the total number of the descending sub frame that has carried out the downlink data packet scheduled transmission in the current feedback window or the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal.
16. base station as claimed in claim 14 is characterized in that, said uplink scheduling signaling transmitting element is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value that is carried at the downlink data packet transmission situation information in each uplink scheduling signaling was identical in a descending sub frame.
17. base station as claimed in claim 15 is characterized in that, said descending scheduling signaling transmitting element is used for:
When the total number that has carried out the descending sub frame of downlink data packet scheduled transmission in current feedback window at said uplink scheduling signaling transmitting element is carried in the uplink scheduling signaling; With the descending sub frame of representing the downlink data packet that the said descending scheduling signaling of transmission is dispatched is that the count information that carries out which descending sub frame of downlink data packet scheduled transmission in the said feedback window is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal.
18. base station as claimed in claim 15 is characterized in that, said descending scheduling signaling transmitting element is used for:
Said uplink scheduling signaling transmitting element with current feedback window in the total number of downlink data packet of scheduled transmission when being carried in the uplink scheduling signaling; With the said descending scheduling signaling of the expression downlink data packet of being dispatched is that the count information of which downlink data packet of scheduled transmission in the said feedback window is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal.
19., it is characterized in that said uplink scheduling signaling transmitting element is used for like arbitrary described base station among the claim 14-18:
Downlink data packet in the current feedback window of confirming transmission situation information is carried in the descending allocation identification DAI territory of uplink scheduling signaling;
Said descending scheduling signaling transmitting element is used for:
Said count information is carried in the DAI territory of said descending scheduling signaling.
20. base station as claimed in claim 19 is characterized in that, said uplink scheduling signaling transmitting element is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value in the DAI territory in each uplink scheduling signaling was identical in a descending sub frame.
21., it is characterized in that a plurality of downlink member carriers that said terminal is supported are like arbitrary described base station among the claim 14-18:
Network side is a plurality of downlink member carriers during the downlink member carrier of terminal configuration is gathered; Perhaps,
Network side is a plurality of downlink member carriers that are in state of activation during the downlink member carrier of terminal configuration is gathered.
22. a terminal is characterized in that, this terminal comprises:
The dispatch receiving element; Be used to receive the descending scheduling signaling of this terminal downlink data receiving bag of scheduling of in current feedback window, sending the base station, and this terminal of scheduling of sending, base station uplink scheduling signaling of in the pairing sub-frame of uplink of current feedback window, sending Physical Uplink Shared Channel PUSCH; Carry count information in the said descending scheduling signaling, carry the downlink data packet transmission situation information in the said current feedback window in the said uplink scheduling signaling;
The feedback sequence extension position is confirmed the unit; Be used for confirming the length of the answering/no answering ACK/NACK sequence that needs send at said sub-frame of uplink, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information according to said downlink data packet transmission situation information;
The feedback sequence transmitting element is used for confirming that according to said feedback sequence extension position length and positional information that the unit is confirmed generate the ACK/NACK sequence, and this ACK/NACK sequence is sent to the base station.
23. terminal as claimed in claim 22 is characterized in that, said feedback sequence extension position confirms that the unit is used for:
In said downlink data packet transmission situation information is when having carried out the total number of descending sub frame of downlink data packet scheduled transmission in the said feedback window, the bit number Q that the answering/no answering ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
Figure FDA0000048416710000071
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
24. terminal as claimed in claim 23 is characterized in that, said feedback sequence extension position confirms that the unit is used for:
The descending sub frame of representing to send the downlink data packet that said descending scheduling signaling dispatched at said count information is when carrying out which descending sub frame of downlink data packet scheduled transmission in the said feedback window, and the Q bit in the said ACK/NACK sequence is divided into the M part; If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part; Or,
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part
Figure FDA0000048416710000081
With
Figure FDA0000048416710000082
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
25. terminal as claimed in claim 22 is characterized in that, said feedback sequence extension position confirms that the unit is used for:
When said downlink data packet transmission situation information is the total number of the downlink data packet of scheduled transmission in the said feedback window, the bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
26. terminal as claimed in claim 25 is characterized in that, said feedback sequence extension position confirms that the unit is used for:
When said count information representes that downlink data packet that said descending scheduling signaling is dispatched is which downlink data packet of scheduled transmission in the said feedback window; If the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
27. a long-term evolution upgrading LTE-A communication system is characterized in that this system comprises:
The base station, being used for need be in current feedback window during dispatch terminal downlink data receiving bag, count information is carried in the descending scheduling signaling, and this descending scheduling signaling is sent to the terminal; When needing dispatch terminal in the corresponding sub-frame of uplink of current feedback window, to send Physical Uplink Shared Channel PUSCH; Downlink data packet in current feedback window transmission situation information is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal; Said current feedback window comprises the descending sub frame that need in said sub-frame of uplink, carry out the ACK/NACK feedback on a plurality of downlink member carriers of supporting at the terminal;
The terminal; Be used to receive said uplink scheduling signaling and descending scheduling signaling; Transmit situation information is confirmed the answering/no answering ACK/NACK sequence that needs send in said sub-frame of uplink length according to said downlink data packet, confirm the corresponding position of ACK/NACK information in said ACK/NACK sequence of downlink data packet that said descending scheduling signaling is dispatched according to said count information; Generate the ACK/NACK sequence according to length of confirming and positional information, and this ACK/NACK sequence is sent to the base station.
28. system as claimed in claim 27 is characterized in that, said base station is used for:
The total number of the descending sub frame that has carried out the downlink data packet scheduled transmission in the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said terminal is used for:
The bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises:
Q=C*N*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; M is the total number of said descending sub frame; Or,
Figure FDA0000048416710000091
C wherein nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nBe 2; N is that network side is the number that is in the downlink member carrier of state of activation in number or the set of this downlink member carrier of downlink member carrier in the downlink member carrier set of terminal configuration; C on the un-activation carrier wave nBe 1; M is the total number of said descending sub frame.
29. system as claimed in claim 28 is characterized in that, said base station is used for:
With the descending sub frame of representing the downlink data packet that the said descending scheduling signaling of transmission is dispatched is that the count information that carries out which descending sub frame of downlink data packet scheduled transmission in the said feedback window is carried in the said descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Said terminal is used for:
Q bit in the said ACK/NACK sequence is divided into the M part;
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers; When single codeword is transmitted, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of P part in the said M part; When many codeword transmission, confirm that then the corresponding ACK/NACK information of this downlink data packet takies 2*I-1 and 2*I bit position of P part in the said M part; Or,
If the value of said count information is P; The descending sub frame that sends the downlink data packet that said descending scheduling signaling dispatched is arranged on I the carrier wave of said a plurality of downlink member carriers, confirms that then the corresponding ACK/NACK information of this downlink data packet takies the of P part in the said M part With
Figure FDA0000048416710000102
Individual bit position, wherein C nBe the code word number on the carrier wave n, C during the single codeword transmission nBe 1, C during many codeword transmission nFor.
30. system as claimed in claim 27 is characterized in that, said base station is used for:
The total number of the downlink data packet of scheduled transmission in the current feedback window is carried in the uplink scheduling signaling, and this uplink scheduling signaling is sent to the terminal;
Said terminal is used for:
The bit number Q that the ACK/NACK sequence of confirming in said sub-frame of uplink, to send according to following formula comprises, and to send bit number to the base station be the ACK/NACK sequence of Q:
Q=C*M, wherein C is the code word number, and C is 1 during the single codeword transmission, and C is 2 during many codeword transmission; M is the total number of said downlink data packet.
31. system as claimed in claim 30 is characterized in that, said base station is used for:
With the said descending scheduling signaling of the expression downlink data packet of being dispatched is that the count information of which downlink data packet of scheduled transmission in the said feedback window is carried in the said descending scheduling signaling, and this descending scheduling signaling is sent to the terminal;
Said terminal is used for:
If the downlink data packet that said descending scheduling signaling is dispatched is I the packet that in current feedback window, receives, confirm that then the corresponding ACK/NACK information of this downlink data packet takies I bit position of said ACK/NACK sequence.
32. system as claimed in claim 27 is characterized in that, said base station is used for:
When a plurality of uplink scheduling signaling was sent at said terminal, the value that is carried at the downlink data packet transmission situation information in each uplink scheduling signaling was identical in a descending sub frame.
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