CN106533636B - Hybrid automatic retransmission request information feedback method, system based on carrier wave polymerization - Google Patents
Hybrid automatic retransmission request information feedback method, system based on carrier wave polymerization Download PDFInfo
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- CN106533636B CN106533636B CN201510575394.8A CN201510575394A CN106533636B CN 106533636 B CN106533636 B CN 106533636B CN 201510575394 A CN201510575394 A CN 201510575394A CN 106533636 B CN106533636 B CN 106533636B
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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
- H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
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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
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of hybrid automatic retransmission request information feedback methods based on carrier wave polymerization, system, base station is that index value is arranged in scheduling carrier wave and scheduled carrier wave in the present invention, and index value information and total number subcarriers amount are passed into terminal, terminal is judged according to its received information, determine whether to be lost the corresponding downlink information of a certain carrier wave, and the first predetermined information, i.e. nack message are sent out to the carrier wave for losing downlink information；First predetermined information or the second predetermined information, i.e. NACK or ACK information are fed back according to the accuracy of the carrier wave transmitting data packet to the corresponding carrier wave of index value is not lacked.The present invention can determine the information for needing to feed back according to the practical carrier wave that calls of terminal, realize the flexible adaptive of feedback information and actual schedule carrier wave, improve the reliability of PUCCH/PUSCH channel bearing useful information.
Description
Technical field
The invention belongs to wireless communication technology field, it is more particularly to a kind of mixed automatic retransfer based on carrier wave polymerization and asks
Ask information feedback method, system.
Background technique
In order to meet the requirement that single user peak rate and power system capacity are promoted, a kind of most direct method is exactly to increase to be
System transmission bandwidth.Therefore LTE (LongTermEvolution, long term evolution)-Advanced system introduces an increase transmission belt
Wide technology, that is, CA (Carrier Aggregation, carrier wave polymerization).CA technology can be by 2~5 LTE member carriers
(ComponentCarrier, CC) condenses together, and realizes the transmission bandwidth of maximum 100MHz, effectively increases downstream transmission
Rate.Terminal determines that at most uplink/downlink transmission can be carried out using several carrier waves simultaneously according to the capacity of water of oneself.In LTE
In Rel-10, the carrier wave for introducing most 5 carrier wave members polymerize to support maximum 100M bandwidth, and each carrier wave is backward compatibility
Carrier wave, as shown in Figure 1A, 1B.
The carrier wave polymerization for supporting more multicarrier member, such as the scene of 32 carrier waves polymerization are introduced in Rel-13.For
Frequency Division Duplex FDD, a subframe need to feed back the Ack/Nack information of maximum 32 carrier wave members；For Time Division Duplex TDD
Speech, situation are more serious.TDD system since there are different uplink and downlinks proportions, and only sub-frame of uplink could feeding back downlink
Ack/Nack of subframe etc. controls information, matches to different uplink and downlinks, and a sub-frame of uplink may need to feed back multiple downlinks
The Ack/Nack information of subframe, the relationship are indicated by table 1:
Table 1
As can be seen from the table for configuration 2 and configuration 4, certain sub-frame of uplink need to feed back the Ack/ of 4 downlink subframes
Nack information, for configuration 5, a sub-frame of uplink needs to feed back the Ack/Nack information of 9 downlink subframes.
In existing carrier aggregation scene, the feedback quantity of Ack/Nack information is determined according to the carrier number of configuration,
Even if at a time to some carrier wave and unscheduled, but still needing to feed back the Ack/Nack information of the carrier wave, terminal is still
Need the corresponding useless Ack/Nack information of the carrier wave to be regarded as effective information by PUCCH (Physical Uplink Control Channel)/
PUSCH (Physical Uplink Shared Channel) feedback.In this way when portfolio is lesser, however it remains need to feed back a large amount of useless
Ack/Nack information reduces the utilization rate and reliability of PUCCH/PUSCH channel.With polymerization more multicarrier needs,
The problem of this aggregated feedback mode causes can further deteriorate.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is to how according to the determining information for needing to feed back of practical the case where calling carrier wave.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of hybrid automatic retransmission request informations based on carrier wave polymerization
Feedback method the described method comprises the following steps:
Index value is set for each carrier wave that is scheduled and is transferred to terminal；Multiple ropes of each scheduled carrier wave
Draw sequence of the value first according to scheduling carrier wave serving cell index value from small to large, according still further to scheduled carrier service cell index value
The integer for sequentially forming a column and being increased continuously from small to large；
Index value is set for each scheduling carrier wave and is transferred to terminal；Multiple index values of each scheduling carrier wave
According to the integer ordered series of numbers being increased continuously that sequentially forms of serving cell index value, and the value of the first item of the integer ordered series of numbers is
The number of the scheduled carrier wave adds one；Wherein the scheduling carrier wave is the carrier wave for dispatching the scheduled carrier wave；
Terminal is found scarce using the index value of its received scheduled carrier wave and the index value of the scheduling carrier wave
The index value of mistake, determination are lost Downlink Control Information on the corresponding carrier wave of index value of missing, and to the rope of the missing
Draw the corresponding carrier wave of value and feeds back the first predetermined information.
Preferably, the method also includes following steps:
The total number of the scheduling carrier wave and scheduled carrier wave is transferred to terminal；
The terminal judges the maximum value whether total number is greater than in its received scheduling carrier wave index value, if described
Total number is greater than the maximum value in the received scheduling carrier wave index value of the terminal, it is determined that the last one or several scheduling carrier waves
Downlink Control Information lose, the first predetermined information is fed back to the last one or several scheduling carrier waves.
Preferably, the index value is transmitted by DCI.
Preferably, the method also includes following steps:
Just whether terminal judge received data packet in the corresponding received data packet on carrier wave of received index value
Really, if incorrect, terminal feeds back first predetermined information on corresponding carrier wave；If correct, terminal is in corresponding load
The second predetermined information is fed back on wave.
Preferably, first predetermined information is Nack information, and second predetermined information is Ack information.
Preferably, the method also includes following steps:
Terminal is according to the size of received index value, according to sequence from small to large successively to corresponding carrier wave feedback letter
Breath.
Preferably, the index value of the scheduled carrier wave uses binary counting, and the scheduled carrier wave is multiple
The first sequence according to scheduling carrier wave serving cell index value from small to large of index value, according still further to scheduled carrier service cell index
The integer that the column sequentially formed of value from small to large are increased continuously returns to zero when being greater than predetermined value from New count.
A kind of system, the system comprises base stations and terminal；The base station includes index value setting unit；The base station packet
It includes information and receives feedback unit；
The index value setting unit is used to that index value to be arranged and be transferred to the information for each scheduled carrier wave and connects
Receive feedback unit；Multiple index values of each scheduled carrier wave first according to scheduling carrier wave serving cell index value from it is small to
Big sequence, according still further to the integer for sequentially forming a column and being increased continuously of scheduled carrier service cell index value from small to large；
The index value setting unit is also used to that index value is arranged for each scheduling carrier wave and is transferred to the information and connects
Receive feedback unit；Multiple index values of each scheduling carrier wave are increased continuously according to sequentially forming for serving cell index value
Integer ordered series of numbers, and the value of the first item of the integer ordered series of numbers be the scheduled carrier wave number summation add one；Wherein institute
Stating scheduling carrier wave is the carrier wave for dispatching the scheduled carrier wave；
The information receives the index value and the tune that feedback unit is used to utilize its received scheduled carrier wave
The index value for spending carrier wave, finds the index value of missing, and feedback first is predetermined on the corresponding carrier wave of the index value of the missing
Information gives the base station.
Preferably, the base station further includes index value transmission unit, and the index value transmission unit is used for the scheduling
The total number of carrier wave and scheduled carrier wave is transferred to the information and receives feedback unit；
The information receives feedback unit also with judging whether the total number is greater than its received scheduling carrier wave index value
In maximum value, the total number be greater than its received scheduling carrier wave index value in maximum value when, determine the last one or
The Downlink Control Information of several scheduling carrier waves is lost, to feeding back the first predetermined information in the last one or several scheduling carrier waves.
Preferably, the terminal further include with data packet receiving unit,
The data packet receiving unit is used in the corresponding received data packet on carrier wave of the index value, and is transferred to described
Information receives feedback unit, and the information receives feedback unit is also used to judge whether the data packet is correct, if incorrect,
First predetermined information is fed back on corresponding carrier wave；If correct, the second predetermined information is fed back on corresponding carrier wave.
(3) beneficial effect
The present invention provides a kind of hybrid automatic retransmission request information feedback method based on carrier wave polymerization, system, this hairs
Bright middle base station is scheduling carrier wave and index value is arranged in scheduled carrier wave, and index value information and total number subcarriers amount are passed to end
End, terminal are judged according to its received information, it is determined whether are lost the corresponding downlink information of a certain carrier wave, and to loss
The carrier wave of downlink information sends the first predetermined information (nack message).The above method can be according to the practical carrier wave need called of terminal
The information to be fed back, realization feedback information is flexible adaptive with actual schedule carrier wave, improves PUCCH/PUSCH channel and holds
Carry the reliability of useful information.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Figure 1A, 1B are LTE Rel-10 configuration schematic diagram in carrier wave polymerization in the prior art；
Fig. 2 is the hybrid automatic retransmission request information feedback side based on carrier wave polymerization of a preferred embodiment of the invention
The flow chart of method；
Fig. 3,4 schematic diagram for index value is arranged in the present invention.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and examples.Following embodiment is for illustrating this hair
It is bright, but cannot be used to limit the scope of the invention.
Fig. 2 is the hybrid automatic retransmission request information feedback side based on carrier wave polymerization of a preferred embodiment of the invention
The flow chart of method, the described method comprises the following steps:
S1, base station are that each scheduled carrier wave is arranged index value and is transferred to terminal, are preferably transferred to end by DCI
End；Multiple index values of each scheduled carrier wave are first according to scheduling carrier wave serving cell index value from small to large suitable
Sequence, according still further to the integer for sequentially forming a column and being increased continuously of scheduled carrier service cell index value from small to large；
S2, base station are that each scheduling carrier wave is arranged index value and is transferred to terminal, are preferably transferred to end by DCI
End；Multiple index values of each scheduling carrier wave sequentially form the integer number being increased continuously according to serving cell index value
Column, and the value of the first item of the integer ordered series of numbers adds one for the number of the scheduled carrier wave；Wherein the scheduling carrier wave is
Dispatch the carrier wave of the scheduled carrier wave；
S3, terminal are looked for using the index value of its received scheduled carrier wave and the index value of the scheduling carrier wave
To the index value of missing, determination is lost Downlink Control Information on the corresponding carrier wave of index value of missing, and to the missing
The corresponding carrier wave of index value feed back the first predetermined information, the corresponding carrier wave of the index value not lacked is transmitted according on the carrier wave
The accuracy of data packet feeds back first predetermined information or the second predetermined information.Preferably the first predetermined information is Nack letter
Breath, second predetermined information are Ack information.
It is understood that in the above method S1, S2, S3 do not represent method execute sequence, be intended merely to following statement more
It is convenient and accurate to add.
Method of the invention counts the carrier number of actual schedule by index value, and is scheduling in step S2 and in S1
Carrier wave and the index value of scheduled carrier wave setting are a series of continuous integers, so terminal is received according to it in step S3
Index value whether continuously judge whether that index value lacks, index value missing indicates the control information that is lost on corresponding carrier wave,
Need to feed back the first predetermined information at this time to base station, after receiving corresponding first predetermined information of the carrier wave, base station is being lost
It loses and retransmits data packet on the channel of index value.
How illustrate below by attached drawing is scheduling carrier wave and scheduled carrier wave setting index value.As shown in figure 3, adjusting
It spends carrier wave 1 and dispatches 3 secondary carriers (i.e. scheduled carrier wave), scheduling carrier wave 2 dispatches 2 secondary carriers, 3 self scheduling of scheduling carrier wave.In
Increase 5bits in scheduling carrier wave 1,2,3 for storing corresponding index value, and originates index value as institute before corresponding carrier wave
There is the total quantity of carrier wave to add an obtained value.Scheduled carrier number index value occupies 3bit, and the index value of scheduled carrier number is
The accumulated value that scheduled carrier wave counts.
The present invention is all scheduled carrier wave setting index values first, index value is arranged for scheduling carrier wave later, scheduling carries
The index value of wave comes after the index value of scheduled carrier wave.At feedback information (ACK/NACK information), all scheduled
The feedback information of carrier wave comes front, and the feedback information of all scheduling carrier waves comes below, base station is transferred to together, such as Fig. 4 institute
Show.
The information that the above method disclosed by the invention can need to feed back according to the practical carrier wave called of terminal, realizes feedback
Information is flexible adaptive with actual schedule carrier wave, improves the reliability of PUCCH/PUSCH channel bearing useful information.
Further, the above method is further comprising the steps of:
The total number of the scheduling carrier wave and scheduled carrier wave is transferred to terminal by base station, is preferably transferred to by DCI
Terminal；Terminal judges the maximum value whether total number is greater than in the index value of its received scheduling carrier wave, if described total
Number is greater than the maximum value in the index values of the received scheduling carrier wave of the terminal, it is determined that the last one or several scheduling carrier waves
Downlink Control Information is lost, to the last one or the first predetermined information of several scheduled carrier wave feedbacks.
It can only only be determined by the successional judgement of numerical value and know the no downlink information for losing middle position carrier wave, do not can determine that
Whether the downlink information of the last one or several carrier wave is lost, therefore in above-mentioned steps, base station sends the total of carrier wave to terminal
Number, being made comparisons by the maximum value for the index value for receiving carrier wave total number and terminal, it is last to may determine whether to be lost
The downlink information of one or several carrier waves further ensures the accuracy of feedback information.
Further, the above method is further comprising the steps of:
Just whether terminal judge received data packet in the corresponding received data packet on carrier wave of received index value
Really, if incorrect, terminal feeds back first predetermined information to corresponding carrier wave；If correct, terminal is to corresponding carrier wave
Feed back the second predetermined information.If the information inaccuracy that terminal receives, terminal also sends the first predetermined information to base station, with loss
The information of downlink information feedback is identical.
Further, the above method is further comprising the steps of:
Terminal is according to the size of received index value, according to sequence from small to large successively to corresponding carrier wave feedback letter
Breath, wherein feedback information includes the first predetermined information and the second predetermined information.Feedback information ensures instead in a fixed order
The accuracy of feedforward information.
Further, the index value of the scheduled carrier wave uses binary counting, multiple ropes of the scheduled carrier wave
Draw the integer that value is increased continuously according to the column of serving cell index value sequentially formed.If by 5 scheduled carrier waves, by
The sequence of the first serving cell index value according to scheduling carrier wave of the index value of scheduling carrier wave from small to large, then according still further to scheduled
It is 000,001,010,011,100 that the sequence of carrier service cell index value, which is successively separately encoded,.
And the index value of scheduled carrier wave returns to zero when being greater than predetermined value from New count.Preferably scheduled carrier wave
Index value is started counting from 000 (binary system), and 000 (binary system) is returned when more than 111 (binary system) and restarts to count, is i.e. quilt
Scheduling carrier wave number index value is 000,001 ..., 111,000,001 ... 111,000 ....
The index value of same scheduling carrier wave also uses binary representation.As shown in figure 3, the index value of scheduling carrier wave rope 1 is 6,
Indicated value is 00101；The index value of scheduling carrier wave 2 is 7, indicated value 00110；The index value of scheduling carrier wave 3 is 8, indicated value
It is 00111.
Further, it is sent in base station in the DCI of uplink scheduling of terminal, increases the total activation carrier wave number field of 5bits,
The total quantity of instruction terminal received scheduling carrier wave and scheduled carrier wave indicates how many has altogether in the downlink subframe for base station
A carrier wave needs to carry out ACK/ANCK information feedback.Prevent to lose due to the scheduling authorization of certain carrier waves, base station and terminal occurs
Understand differently the case where causing.
By carrier number index value, terminal can determine which carrier wave is transmitted as data, and the authorization of which carrier wave is lost
(i.e. Downlink Control Information loss) makes a reservation for letter to the carrier wave feedback first that authorization is lost when carrying out PUCCH/PUSCH feedback
Breath feeds back the second predetermined information to the carrier wave that other are called.Terminal can determine what needs were fed back according to the carrier wave actually called
ACK/ANCK load realizes the flexible adaptive of the carrier wave of feedback information and actual schedule.
Corresponding to the above method, invention additionally discloses a kind of systems, and the system comprises base stations and terminal；The base station packet
Include index value setting unit；The terminal includes that information receives feedback unit；The index value setting unit is used to be each
Scheduled carrier wave setting index value is simultaneously transferred to the information reception feedback unit；Multiple ropes of each scheduled carrier wave
Draw value first according to scheduling carrier wave serving cell index value sequence from small to large according still further to scheduled carrier service cell index value
The integer for sequentially forming a column and being increased continuously from small to large；The index value setting unit is also used to as each scheduling carrier wave
Setting index value is simultaneously transferred to the information reception feedback unit；Multiple index values of each scheduling carrier wave are according to service
Cell index value sequentially forms the integer ordered series of numbers being increased continuously, and the value of the first item of the integer ordered series of numbers is described adjusted
The number summation of degree carrier wave adds one；Wherein the scheduling carrier wave is the carrier wave for dispatching the scheduled carrier wave；The information receives
Feedback unit is used for the index value of index value and the scheduling carrier wave using its received scheduled carrier wave, finds scarce
The index value of mistake, and the first predetermined information is fed back to the base station, to not lacking to the corresponding carrier wave of the index value of the missing
The corresponding carrier wave of index value on first predetermined information or second fed back according to the accuracy of the carrier wave transmitting data packet
Predetermined information.The information that can need feed back according to the practical carrier wave that calls of terminal using above system, realize feedback information with
Actual schedule carrier wave it is flexible adaptive, avoid the waste of control channel, improve the reliable of channel bearing useful information
Property.
Further, the base station further includes index value transmission unit, and the index value transmission unit is used for the tune
The total number of degree carrier wave and scheduled carrier wave is transferred to the information and receives feedback unit；The information receives feedback unit and also uses
The maximum value whether total number is greater than in its received scheduling carrier wave index value is judged, in the total number greater than its reception
Scheduling carrier wave index value in maximum value when, determine that the Downlink Control Information of the last one or several scheduling carrier waves is lost, it is right
The first predetermined information is fed back on the last one or several scheduling carrier waves.
Further, the terminal further includes data packet receiving unit, and the data packet receiving unit is used in the rope
Draw the corresponding received data packet on carrier wave of value, and be transferred to the information and receive feedback unit, the information receives feedback unit
It is also used to judge whether the data packet is correct, if incorrect, to feeding back first predetermined information on corresponding carrier wave；If
Correctly, then to feeding back the second predetermined information on corresponding carrier wave.
Since above system corresponds to the above method, so which is not described herein again for duplicate part.
The above embodiments are only used to illustrate the present invention, rather than limitation of the present invention.Although referring to embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, to technical solution of the present invention carry out it is various combination,
Modification or equivalent replacement should all cover and want in right of the invention without departure from the spirit and scope of technical solution of the present invention
It asks in range.
Claims (10)
1. a kind of hybrid automatic retransmission request information feedback method based on carrier wave polymerization, which is characterized in that the method includes
Following steps:
Index value is set for each carrier wave that is scheduled and is transferred to terminal；Multiple index values of each scheduled carrier wave
Form the integer that a column are increased continuously；
Index value is set for each scheduling carrier wave and is transferred to terminal；Multiple index values of each scheduling carrier wave are formed
The integer ordered series of numbers being increased continuously, and the value of the first item of the integer ordered series of numbers adds one for a numerical value of the scheduled carrier wave；
Wherein the scheduling carrier wave is the carrier wave for dispatching the scheduled carrier wave；
Terminal finds missing using the index value of its received scheduled carrier wave and the index value of the scheduling carrier wave
Index value determines and is lost Downlink Control Information on the corresponding carrier wave of index value of missing, and to the index value pair of the missing
The first predetermined information is fed back on the carrier wave answered, to the corresponding carrier wave of the index value not lacked according to the carrier wave transmitting data packet
Accuracy feeds back first predetermined information or the second predetermined information.
2. the method according to claim 1, wherein the method also includes following steps:
The total number of the scheduling carrier wave and scheduled carrier wave is transferred to terminal；
Terminal judges the maximum value whether total number is greater than in its received scheduling carrier wave index value, if the total number is big
Maximum value in its received scheduling carrier wave index value, it is determined that the Downlink Control Information of the last one or several scheduling carrier waves
It loses, to the last one or several scheduling carrier waves feedback first predetermined information.
3. method according to claim 1 or 2, which is characterized in that the index value is transmitted by DCI.
4. the method according to claim 1, wherein the method also includes following steps:
Terminal judges whether received data packet is correct in the corresponding received data packet on carrier wave of received index value,
If incorrect, terminal feeds back first predetermined information to corresponding carrier wave；If correct, terminal feeds back corresponding carrier wave
Second predetermined information.
5. the method according to claim 1, wherein first predetermined information be Nack information, described second
Predetermined information is Ack information.
6. the method according to claim 1, wherein the method also includes following steps:
It is pre- successively to feed back first to corresponding carrier wave according to sequence from small to large according to the size of received index value for terminal
Determine information or the second predetermined information.
7. the method according to claim 1, wherein the index value of the scheduled carrier wave uses binary system meter
Number, and the integer that a column of multiple index values formation of the scheduled carrier wave are increased continuously, return when being greater than predetermined value
Zero from New count.
8. a kind of communication system, which is characterized in that the system comprises base stations and terminal；The base station includes that index value setting is single
Member；The terminal includes that information receives feedback unit；
The index value setting unit receives instead for index value to be arranged and is transferred to the information for each scheduled carrier wave
Present unit；Multiple index values of each scheduled carrier wave form the integer that a column are increased continuously；
The index value setting unit is also used to that index value is arranged for each scheduling carrier wave and is transferred to the information and receives instead
Present unit；Multiple index values of each scheduling carrier wave form the integer ordered series of numbers being increased continuously, and the integer ordered series of numbers
First item value be the scheduled carrier wave number summation add one；Wherein the scheduling carrier wave is to dispatch the scheduled load
The carrier wave of wave；
The information is received feedback unit and is used to be carried using the index value of its received scheduled carrier wave and the scheduling
The index value of wave finds the index value of missing, and feeds back the first predetermined information to the corresponding carrier wave of the index value of the missing and give
The base station, to pre- according to the accuracy of carrier wave transmitting data packet feedback first on the corresponding carrier wave of the index value not lacked
Determine information or the second predetermined information.
9. system according to claim 8, which is characterized in that the base station further includes index value transmission unit, the rope
Draw value transmission unit and receives feedback unit for the total number of the scheduling carrier wave and scheduled carrier wave to be transferred to the information；
The information receives feedback unit and is also used to judge whether the total number is greater than in its received scheduling carrier wave index value
Maximum value, the total number be greater than its received scheduling carrier wave index value in maximum value when, determine the last one or it is several
The Downlink Control Information of a scheduling carrier wave is lost, to feeding back first predetermined information in the last one or several scheduling carrier waves.
10. system according to claim 8, which is characterized in that the terminal further includes data packet receiving unit,
The data packet receiving unit is used in the corresponding received data packet on carrier wave of the index value, and is transferred to the information
Feedback unit is received, the information receives feedback unit is also used to judge whether the data packet is correct, if incorrect, right
First predetermined information is fed back on the carrier wave answered；If correct, second predetermined information is fed back on corresponding carrier wave.
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