CN102957518B - A kind of sending method of response message, method of reseptance and subscriber equipment and base station - Google Patents

A kind of sending method of response message, method of reseptance and subscriber equipment and base station Download PDF

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CN102957518B
CN102957518B CN201110241609.4A CN201110241609A CN102957518B CN 102957518 B CN102957518 B CN 102957518B CN 201110241609 A CN201110241609 A CN 201110241609A CN 102957518 B CN102957518 B CN 102957518B
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response message
group
message channel
data symbols
code word
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CN102957518A (en
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陈小锋
吕永霞
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201110241609.4A priority Critical patent/CN102957518B/en
Priority to CN201610116793.2A priority patent/CN105611645B/en
Priority to CN201610115604.XA priority patent/CN105577334B/en
Priority to PCT/CN2012/080473 priority patent/WO2013026397A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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

Abstract

The embodiment of the invention discloses a kind of sending method of response message, method of reseptance and subscriber equipment and base station, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.Embodiment of the present invention method comprises: subscriber equipment generates response message corresponding to the data of the downlink member carrier carrying that described subscriber equipment receives; Response message mapping table searched by subscriber equipment, the response message channel group finding the response message corresponding with the data that described downlink member carrier carries corresponding and group of data symbols, the different response message channel included by response message channel group in described response message mapping table is not identical; Each data symbol in described group of data symbols is mapped at least one response message channel by subscriber equipment respectively; Data symbol in group of data symbols is sent to base station by subscriber equipment on the response message channel be mapped to.

Description

A kind of sending method of response message, method of reseptance and subscriber equipment and base station
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of sending method of response message, method of reseptance and subscriber equipment and base station.
Background technology
At hybrid automatic repeat-request (HARQ, HybridAutomaticRepeatRequest) in technology, after data receiver sends data to data receiver, data receiver needs to data receiver feedback response message, be confirmed whether correctly to receive its data sent to data receiver, response message specifically comprises following three kinds of situations: confirm (ACK, Acknowledgement) (NACK, is denied, Negative-acknowledgement) with discontinuous transmission (DTX, DiscontinuousTransmission).Wherein, ACK represents that data receiver is correct, and NACK represents Data reception errors, and DTX represents and do not receive data.
Third generation partner program (3GPP, 3rdGenerationPartnershipProject) evolution Universal Terrestrial wireless access (E-UTRA, EvolvedUniversalTerrestrialRadioAccess) system, also referred to as Long Term Evolution (LTE, LongTermEvolution) in system, in up link (Uplink) direction, subscriber equipment is by Physical Uplink Control Channel (PUCCH, PhysicalUplinkControlChannel), to the response message of base station feedback to the downlink data reception condition that base station sends.Wherein, response message channel is called, also referred to as ack channel by being used for the PUCCH channel of subscriber equipment to base station feedback response message.
At the senior Long Term Evolution (LTE-A as the further evolution of LTE system and enhancing system, LongTermEvolution-Advanced) in system, adopt carrier aggregation (CA, CarrierAggregation) technology, also referred to as spectrum aggregating (SpectrumAggregation) technology or bandwidth expansion (BandwidthExtension) technology, support wider bandwidth, to meet the peak data rate requirement of International Telecommunication Union for the forth generation communication technology.In carrier aggregation technology, the spectrum aggregating of two or more member carrier (CC, ComponentCarrier) is obtained wider transmission bandwidth together.
At present, the state of response message is fed back by channel selecting method, that is: by predefined rule, with the ack channel of in multiple ack channel and multiple quarternary phase-shift keying (QPSK) (QPSK, the combination of a QPSK modulation symbol QuadraturePhaseShiftKeying) in modulation symbol, be expressed as: (ack channel, QPSK modulation symbol), represent a state of response message, send by this ack channel the state that QPSK modulation symbol carrys out the response message of this combination correspondence of uplink feedback.When base station receives upstream data, first judge which ack channel have received data, and which QPSK symbol identifies what this ack channel received be, according to the combination of the QPSK modulation symbol of this ack channel and transmission thereof, and the corresponding relation between the state of response message, just can know the response message that subscriber equipment feeds back, thus know the reception condition of subscriber equipment to the data that downlink member carrier transmits.
Above-described prior art is only applicable to the situation that base station is a user device configuration downlink member carrier.In carrier aggregation technology, each member carrier has independently HARQ procedure.When LTE-A subscriber equipment accesses multiple downlink member carrier simultaneously, to each downlink member carrier at Physical Downlink Shared Channel (PDSCH, PhysicalDedicatedSharedChannel) data of upper transmission, all want the corresponding response message of uplink feedback, and in prior art, there is not this method being applicable to multiple downlink member carrier feedback response message.
Summary of the invention
Embodiments provide a kind of sending method of response message, method of reseptance and subscriber equipment and base station.
The sending method of a kind of response message that the embodiment of the present invention provides, comprising:
Subscriber equipment generates response message corresponding to the data of the downlink member carrier carrying that described subscriber equipment receives;
Response message mapping table searched by subscriber equipment, finds the response message channel group corresponding with described response message and group of data symbols, and the different response message channel included by response message channel group in described response message mapping table is not identical;
Each data symbol in described group of data symbols is mapped at least one response message channel by subscriber equipment respectively;
Data symbol in described group of data symbols is sent to base station by subscriber equipment on the described response message channel be mapped to.
The method of reseptance of a kind of response message that the embodiment of the present invention provides, comprising:
Base station detects that subscriber equipment is for feeding back the response message channel group of response message, and each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
Described base station is on the response message channel that the response message channel group detected is corresponding, and described in demodulation, the data of response message channel bearing obtain a group of data symbols;
The group of data symbols that described base station is obtained by the response message channel group that detects and demodulation, searches response message mapping table, obtains the response message of described subscriber equipment feedback.
A kind of subscriber equipment that the embodiment of the present invention provides, comprising:
Response message generation unit, the response message that the data for generating the downlink member carrier carrying that described subscriber equipment receives are corresponding;
Search unit, for searching response message mapping table, the response message channel group finding the response message corresponding with the data that described downlink member carrier carries corresponding and group of data symbols, the different response message channel included by response message channel group in described response message mapping table is not identical;
Map unit, for being mapped at least one response message channel respectively by each data symbol in described group of data symbols;
Group of data symbols transmitting element, for sending to described base station by the data symbol in described group of data symbols on the described response message channel be mapped to.
A kind of base station that the embodiment of the present invention provides, comprising:
Detecting unit, for detecting that subscriber equipment is for feeding back the response message channel group of response message, each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
Demodulating unit, at response message channel corresponding to the response message channel group detected, described in demodulation, the data of response message channel bearing obtain a group of data symbols;
Searching unit, for the group of data symbols that the response message channel group by detecting and demodulation obtain, searching response message mapping table, obtain the response message of described subscriber equipment feedback.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In embodiments of the present invention, subscriber equipment is by searching response message mapping table, the response message channel group finding the response message corresponding with the data that the downlink member carrier received carries corresponding and group of data symbols, then, each data symbol in group of data symbols is mapped at least one response message channel by subscriber equipment respectively, data symbol in group of data symbols is sent to base station by subscriber equipment, because subscriber equipment in the embodiment of the present invention represents a kind of response message by a response message channel group and a group of data symbols, when the downlink member carrier that subscriber equipment receives is multiple carrier wave, can represent that subscriber equipment receives the reception condition of multiple downlink member carrier by response message channel group and the corresponding a kind of response message of group of data symbols, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, to those skilled in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the sending method of a kind of response message that Fig. 1 provides for the embodiment of the present invention;
A kind of schematic diagram being sent data symbol by antenna corresponding A CK channel that Fig. 2 provides for the embodiment of the present invention;
The another kind that Fig. 3 provides for the embodiment of the present invention sends the schematic diagram of data symbol by antenna corresponding A CK channel;
The schematic diagram of the Resource Block of the PUCCH that Fig. 4 provides for the embodiment of the present invention;
The schematic diagram of a kind of 36 kinds of different pilot tones that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram of the method for reseptance of a kind of response message that Fig. 6 provides for the embodiment of the present invention;
The schematic diagram of a kind of subscriber equipment that Fig. 7 provides for the embodiment of the present invention;
The schematic diagram of a kind of base station that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Embodiments providing a kind of sending method of response message, method of reseptance and subscriber equipment and base station, may be used for improving resource utilization when using multiple antenna port.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and not all embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtains, all belongs to the scope of protection of the invention.
The sending method of a kind of response message that the embodiment of the present invention provides, as shown in Figure 1, comprising:
101, subscriber equipment generates response message corresponding to the data of the downlink member carrier carrying that this subscriber equipment receives.
In embodiments of the present invention, when subscriber equipment accesses multiple downlink member carrier simultaneously, base station can at Physical Downlink Shared Channel (PDSCH by each downlink member carrier, PhysicalDedicatedSharedChannel) to user device transmissions data on, subscriber equipment receives by each downlink member carrier the data that base station sends, and to the reception condition of base station feedback to the data that multiple downlink member carrier carries.
In embodiments of the present invention, after subscriber equipment receives downlink member carrier, subscriber equipment needs according to reception condition to base station feedback response message, for representing the reception condition of the data that subscriber equipment sends for base station.Base station is that the downlink member carrier under carrier aggregation scene distributes response message channel (can be called for short ack channel in embodiments of the present invention), and subscriber equipment can by the ack channel feedback user equipment of base station assigns to the response message of the data that each downlink member carrier carries.Wherein, the member carrier that downlink member carrier is configuration or activates, when being assumed to be N number of downlink member carrier, base station is that each downlink member carrier configures 2 ack channels, then co-exist in 2N ack channel, N is natural number.
Such as, when N gets 2, there are two downlink member carriers, then base station is that each downlink member carrier distributes two ack channels, has 4 ack channels, and the transfer of data in two downlink member carriers on each downlink member carrier is configured to the transmission of the maximum support of energy two code words (codeword), each code word is independent of chnnel coding, independently carry out reception condition verification, therefore, response message corresponding to each code word can be fed back separately.
In actual applications, subscriber equipment needs the response message of feedback, if feed back completely, response message to be feedback specifically comprises three kinds: ACK, NACK, DTX, namely each code word needs to feed back three state, be ACK, NACK and DTX respectively, the response message that so all code words of two downlink member carriers are corresponding has 3 × 3 × 3 × 3=81 state.But the importance of all these response messages is not the same, and some response message does not need to distinguish, and response message to be feedback also can comprise two kinds: ACK, NACK/DTX.Because when these response messages produce, the impact brought for receiving terminal (base station) is identical or substantially identical.Such as, base station have sent a code word to subscriber equipment, if subscriber equipment receives mistake, need to base station feedback NACK, or subscriber equipment does not receive this code word completely, needs to base station feedback DTX, but for base station, all need again again this code word of transmission primaries, in this case, response message NACK and response message DTX can not distinguish, and directly represents a state with " NACK/DTX ".
102, response message mapping table searched by subscriber equipment, finds the response message channel group corresponding with the response message generated and group of data symbols, and wherein, the different response message channel included by response message channel group in response message mapping table is not identical.
In embodiments of the present invention, response message to be feedback is represented respectively by different response message channel group and different group of data symbols, a response message mapping table can be formed, in response message mapping table, response message channel group at least comprises two response message channels, the different response message channels included by response message channel group is not identical, and each response message channel comprises two time slots.When supposing that base station is the N number of downlink member carrier of user device configuration, base station is that each downlink member carrier configures 2 ack channels, then co-exist in 2N ack channel, N is natural number, 2N ack channel grouping is divided into into N group, often organizes two ack channels.For two downlink member carriers, corresponding for same downlink member carrier two ack channels are assigned in same group.
Wherein, in response message mapping table, a response message channel group and the unique correspondence one of group of data symbols response message to be feedback, such as when N gets 2, there are two downlink member carriers, the ack channel that one of them downlink member carrier distributes is ack channel 0 and ack channel 1, the ack channel that another downlink member carrier distributes is ack channel 2 and ack channel 3, by ack channel 0 and ack channel 1, ack channel 2 and ack channel 3 are divided into two groups, be respectively ack channel group (0, 1) and ack channel group (2, 3), an ack channel group and a group of data symbols are for representing a kind of response message to be feedback, the response message mapping table giving a kind of response message to be feedback as shown in table 1 below, certainly multiple response message to be feedback and the mapping table between response message channel group and group of data symbols can also be derived according to this response message mapping table in actual applications, only illustrate to be not construed as limiting herein.
Table 1 is the response message mapping table of response message to be feedback
It should be noted that, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding.It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ..., 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.In Table 1, if the response message that subscriber equipment generates is the state of last column in table 1, so what does not send by subscriber equipment, represents do not send any data with " Notransmission ".
Group of data symbols in following his-and-hers watches 1 illustrates as follows: such as, two data symbol a0 and a1 in table 1, in actual applications, two data symbols can be represented by the constellation point of eight identical phase phase shift keyings (8PSK, 8PhaseShiftKeying).Or, one in two data symbols by quarternary phase-shift keying (QPSK) (QPSK, QuadraturePhaseShiftKeying) constellation point represents, another in two data symbols is represented by the constellation point of biphase phase shift keying (BPSK, BinaryPhaseShiftKeying).Or two data symbols are respectively by three expressions in four constellation point of QPSK.Or two data symbols represent respectively by the constellation point of three-phase phase shift keying (3PSK, 3PhaseShiftKeying).Next illustrated in greater detail is carried out, such as, group of data symbols (a0, a1) in table 1 _ i, i=1,2, ..., 8, in data symbol (such as a0) have 4 different values, in group of data symbols (a0, a1) _ i, another data symbol (such as a1) has 2 different values.Such as, 4 different values are four constellation point that QPSK is corresponding, and 2 different values are two constellation point that BPSK is corresponding.
Each group group of data symbols (a0, a1) in _ i, the value of a0 is one of them in data symbol Qm, the value of a1 is one of them in Qm, m=0,1,2, the value of 3, Qm is as shown in the table, four constellation point values of QPSK and be as shown in table 2 below with the corresponding relation of bit group:
Table 2 is the relation table of data symbol QPSK modulation symbol and bit value
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively.
In each group group of data symbols (a0, a1) _ i, the value of a0 is one of them in Qm, and the value of a1 is one of them in Qm, m=0,1,2, the value of 3, Qm is as shown in the table, four constellation point values of QPSK and also can for shown in following table 3 with the corresponding relation of bit group:
Table 3 is the relation table of data symbol QPSK modulation symbol and bit value
Data symbol dibit value QPSK modulation symbol
00 Q 0＝1
01 Q 1＝-j
10 Q 2＝j
11 Q 3＝-1
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively.
Two constellation point values of BPSK and have as shown in table 4 with the corresponding relation of bit group:
Table 4 is the relation table of data symbol BPSK modulation symbol and bit value
Data symbol one bit value BPSK modulation symbol
0 Q 0＝1
1 Q 1＝-1
A0 and a1 in group of data symbols (a0, a1) _ i in table 1 can have 3 different values respectively, and such as, 3 different values are wherein 3 of QPSK constellation point, and 3 constellation point that a0 and a1 takes out can be incomplete same.Such as, a0 gets { 1 ,-1, j}, a1 gets { j ,-j, 1}; Again such as, 3 different values be 3 constellation point that 3PSK is corresponding C, Cexp{j2 π/3}, Cexp{j4 π/3}}, wherein C is plural number arbitrarily, and C can get 1, exp{} and represent with e to be the exponential function at the end, as shown in table 5 below:
Data symbol dibit value 3PSK modulation symbol
00 P 0＝1
01 P 1＝exp{j 2π/3}
10 P 2＝exp{j 4π/3}
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively.
It should be noted that, (b0 in table 1, b1) _ j, j=1,2, ..., 8, b0 and b1 wherein also can carry out value according to a kind of method in the obtaining value method of above-mentioned a0 and a1, but the obtaining value method of a0 with a1 can be identical with the obtaining value method of b0 with b1, also can not be identical, herein for illustrative purposes only.
According to the value condition of above-mentioned group of data symbols, for two downlink member carriers, such as, when N gets 2, ack channel 0 and ack channel 1, ack channel 2 and ack channel 3 are divided into two groups, be respectively ack channel group (0,1) and ack channel group (2,3).Data symbol is respectively (a0, a1) _ i and (b0, b1) _ j, gets bit value according to the method described above respectively, obtain the response message mapping table of response message to be feedback as shown in table 6 to this group of data symbols.
Table 6 is the response message mapping table of response message to be feedback
It should be noted that, the bit group in table 6, when embody rule, can be corresponded to group of data symbols by table 6.Such as, in bit group ([1,1], [1]) bracket, the previous bit [1,1] with two bits corresponds to data symbol as in table 2 a QPSK modulation symbol, in bit group ([1,1], [1]) bracket, the bit [1] of a rear bit corresponds to data symbol as Q in table 4 1a BPSK modulation symbol of=-1.Certainly can also derive the response message mapping table of multiple response message to be feedback in actual applications according to the mapping relations table of this table 2 or table 3 or table 4, be only illustrate to be not construed as limiting herein.
103, each data symbol in group of data symbols is mapped at least one response message channel by subscriber equipment respectively.
In embodiments of the present invention, each the response message channel needed in the corresponding response message channel group of the response message of feedback is mapped to different antenna ports by subscriber equipment respectively.Each the response message channel needed in the corresponding response message channel group of the response message of feedback is mapped to different antenna ports by subscriber equipment respectively, so that subscriber equipment respective antenna port is sending the group of data symbols needing the response message of feedback corresponding to base station.
Such as, when having two downlink member carriers, base station is that each downlink member carrier distributes two ack channels, have 4 ack channels, such as shown in table 6, ack channel group (ack channel (0, 1) two ack channels (ack channel 0 and ack channel 1)) are mapped to antenna port 0 and antenna port 1 respectively, by response message channel mapping to the implication of antenna port be in embodiments of the present invention, relation is one to one set up by between response message channel and antenna port, when need by this antenna port send data symbol time just must to should antenna terminal mapping response message channel realization, such as, ack channel 0 is mapped to antenna port 0, its implication is, need to realize sending with regard to corresponding A CK channel 0 when sending data symbol by antenna port 0.
In embodiments of the present invention, the transmission of data symbol needs corresponding A CK channel to realize, and each data symbol needed in group of data symbols corresponding to the response message of feedback is mapped at least one response message channel by subscriber equipment.
In actual applications, each data symbol in group of data symbols is mapped at least one response message channel be respectively specifically as follows: each data symbol in group of data symbols is mapped to a response message channel by subscriber equipment respectively, what namely each data symbol was unique is mapped in a response message channel.Or each data symbol in described group of data symbols is mapped to two response message channels by subscriber equipment.Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1, 1], [1]), a kind of attainable mode is, subscriber equipment is by bit group ([1, 1], [1]) data symbol [1 in, 1] time slot in a response message channel or two time slots are mapped to, by bit group ([1, 1], [1]) data symbol [1] in is mapped to a time slot in another response message channel or two time slots.
In actual applications, when group of data symbols comprises two data symbols, each data symbol in group of data symbols is mapped at least one response message channel and is specifically as follows by subscriber equipment respectively: subscriber equipment by the data sign map of in group of data symbols to two response message channels; Another data symbol in group of data symbols is mapped to a response message channel by subscriber equipment.
When group of data symbols comprises two data symbols, the data sign map of in group of data symbols specifically can comprise to two response message channels by subscriber equipment: subscriber equipment is by first time slot of the data sign map of in group of data symbols to the first response message channel and the second time slot of the second response message channel; Or subscriber equipment is by first time slot, three time slot of first response message channel, second time slot of second response message channel of the data sign map of in group of data symbols to the first response message channel.Another data symbol in group of data symbols is mapped to a response message channel and specifically can comprises by subscriber equipment: another data symbol in group of data symbols is mapped to the 4th time slot of the second response message channel by subscriber equipment.
Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1, 1], [1]), subscriber equipment is by ([1, 1], [1]) data symbol [1 in, 1] time slot of one of them response message channel in two response message channels and a time slot of another response message channel is mapped to, by bit group ([1, 1], [1]) data symbol [1] in is mapped to another time slot of another response message channel in two response message channels.Or, subscriber equipment is by ([1,1], [1]) data symbol [1 in, 1] two time slots of wherein a kind of response message channel in two response message channels and a time slot in another response message channel is mapped to, data symbol [1] in bit group ([1,1], [1]) is mapped to another time slot of another response message channel.The mode herein mapped exists multiple, is not construed as limiting herein.
In actual applications, each data symbol in group of data symbols is mapped at least one response message channel and is specifically as follows by subscriber equipment respectively: each data symbol in group of data symbols is mapped to two response message channels by subscriber equipment.
When group of data symbols comprises two data symbols, each data symbol in group of data symbols is mapped to two response message channels and comprises by subscriber equipment:
Subscriber equipment is by first time slot of the data sign map of in group of data symbols to the first response message channel and the second time slot of the second response message channel.Another data symbol in group of data symbols is mapped to the 3rd time slot of the first response message channel and the 4th time slot of the second response message channel by subscriber equipment.
Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1, 1], [1]), subscriber equipment is by ([1, 1], [1]) data symbol [1 in, 1] time slot of one of them response message channel in two response message channels and a time slot of another response message channel is mapped to, by bit group ([1, 1], [1]) data symbol [1] in is mapped to another time slot of a response message channel and another time slot of another response message channel in two response message channels.
Next data symbol sends data method by the ack channel that antenna takies is introduced.Such as, two ack channels (ack channel 0 and ack channel 1) of ack channel group are mapped on antenna 1 and antenna 2 respectively, suppose that one group of data symbol that response message is corresponding is a0 and a1 (or b0 and b1), corresponding ack channel group be ack channel 0 and ack channel 1 (or, ack channel 2 and ack channel 3), two time slots that so data symbol a0 can be mapped to ack channel 0 send, two time slots that data symbol a1 can be mapped to ack channel 1 send, as shown in Figure 2.Or one of them time slot of one of them time slot and ack channel 1 that a0 is mapped to ack channel 0 sends, wherein another time slot of wherein another time slot and ack channel 1 that data symbol a1 is mapped to ack channel 0 sends, as shown in Figure 3.
In the embodiment of the present invention, transmit in two Resource Block of the row control channel physically of each the response message channel in response message channel group, PUCCH comprises multiple Resource Block (resourceblock), each Resource Block is corresponding 12 continuous print subcarriers on frequency domain, corresponding 6 or 7 symbols (symbol) in time domain.The symbolic number of Resource Block correspondence in time domain is relevant with the length of Cyclic Prefix, and under normal cyclic prefix, corresponding 7 symbols, under extended cyclic prefix, by correspondence 6 symbols.Next be all described for corresponding 7 symbols of a Resource Block.An ack channel transmits in two Resource Block of PUCCH, wherein these two Resource Block are positioned at different time slots, Fig. 4 is the schematic diagram of the Resource Block of the PUCCH of the embodiment of the present invention, in Fig. 4, in ack channel Resource Block, 3 middle symbols are used for transmitting demodulation pilot frequency, remaining 4 symbols are used for data symbol, are such as used for the a0 transmitted as mentioned above, a1, b0, b1.
In a Resource Block of PUCCH, by code division multiplexing together, wherein the code of ack channel is mutually orthogonal to different ack channel, is used for distinguishing different ack channels.Be mapped on the Resource Block shown in Fig. 4 after the data symbol that will transmit in each time slot in ack channel carries out spread spectrum.The sequence that spread spectrum adopts is a two-dimentional orthogonal intersection, and the spreading code on frequency domain is a length is the sequence of 12, has 12 different sequences; Spreading code in time domain is a length is the orthogonal sequence of 4, has 3 different sequences.12 sequences on frequency domain carry out phase rotating by a basic sequence to obtain, that is, r α(n)=e j2 π n α/12r (n), n=0,1 ..., 11; α=0,1 ..., 11.Wherein, r (n) to be length be 12 basic sequence, r αn () is the sequence that basic sequence obtains after phase rotating.Time domain is 3 length be the orthogonal sequence of 4, as shown in table 7.
Table 7 to be 3 length be 4 orthogonal sequence table
Sequence number β [w(0)w(1)w(2)w(3)]
0 [1 1 1 1]
1 [1 - 1 1 -1]
2 [1 -1 -1 1]
Refer to Fig. 5, for the transmission structural representation of the ack channel of the embodiment of the present invention, the data symbol m that a time slot transmits ack channel (such as, m is a0, a1, b0, b1 etc.) after time-frequency domain sequence two-dimensional spread-spectrum, be mapped in Resource Block 4 in the symbol of transfer of data, frequency domain sequence wherein used is r αn (), time domain sequence used is w βn (), has at most 36 pilot tones to select in Figure 5, therefore can support at most 36 different ack channels.
As Fig. 5, a Resource Block has 12 sequences on frequency domain, time domain has 3 sequences, always has 36 combined sequence, i.e. 36 two-dimensional spread-spectrum sequences.Different ack channels in same Resource Block are by the different sequences in employing 36 two-dimensional spread-spectrum sequences.Refer to table 8, these 36 two-dimensional spread-spectrum sequences can carry out following numbering K.
Table 8 is the table of the numbering K of 36 two-dimensional spread-spectrum sequences
It should be noted that, under specific channel condition, such as the channel that frequency selectivity is strong, frequency domain can only use 6 sequences in 12 sequences, one, interval sequence between two frequency domain sequences, so just can produce 18 two-dimensional spread-spectrum sequences, see table 9, these 18 sequences can carry out following numbering K.
Table 9 is the table of the numbering K of 18 two-dimensional spread-spectrum sequences
104, the data symbol in group of data symbols is sent to base station by subscriber equipment on the response message channel be mapped to.
In embodiments of the present invention, after each data symbol in group of data symbols is mapped at least one response message channel by subscriber equipment respectively, the data symbol in group of data symbols is sent to base station by subscriber equipment.
Such as, suppose that the response message mapping table stored in subscriber equipment is as shown in table 6, the each code word being two member carriers when subscriber equipment reception data cases have received, then subscriber equipment needs the response message to base station feedback to be HARQ-ACK (0) ACK, HARQ-ACK (1) ACK, HARQ-ACK (2) ACK, HARQ-ACK (3) ACK, correspond in table 6, subscriber equipment sends upstream data to base station need the channel used to be ack channel 0 and ack channel 1, the group of data symbols sent is the bit group ([1 of the first row in table 6, 1], [1]) corresponding QPSK data symbol with BPSK symbol Q 1=-1.
Base station can get the response message of user feedback by the data symbol of subscriber equipment corresponding A CK channel and transmission, such as, base station provided energy detection method to detect, and on ack channel 0 and ack channel 1, subscriber equipment transmission has data symbol, then base station can get the ACK responder link group of subscriber equipment use is ack channel group (0, 1), base station is by carrying out demodulation to the data symbol in ack channel group, the bit group that can obtain subscriber equipment transmission is ([1, 1], [1]), then, base station is by look-up table 6, base station just can obtain subscriber equipment needs the response message to base station feedback to be HARQ-ACK (0) ACK, HARQ-ACK (1) ACK, HARQ-ACK (2) ACK, HARQ-ACK (3) ACK, base station judges accordingly, subscriber equipment reception data cases is that each code word of two member carriers correctly be have received by user data.
In embodiments of the present invention, subscriber equipment is by searching response message mapping table, find the response message channel group corresponding with the response message needing to feed back and group of data symbols, then, each data symbol in group of data symbols is mapped at least one response message channel by subscriber equipment respectively, data symbol in group of data symbols is sent to base station by subscriber equipment, because subscriber equipment in the embodiment of the present invention represents a kind of response message by a response message channel group and a group of data symbols, when the downlink member carrier that subscriber equipment receives is multiple carrier wave, can represent that subscriber equipment receives the reception condition of multiple downlink member carrier by response message channel group and the corresponding a kind of response message of group of data symbols, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.
Above embodiment describes the sending method of the response message realized from user equipment side, next introduces the method for reseptance of the response message realized from base station side, refers to embodiment as shown in Figure 6.
As shown in Figure 6, the method for reseptance of response message, comprising:
601, base station detects that subscriber equipment is for feeding back the response message channel group of response message, and wherein, each the response message channel in response message channel group is mapped with at least one data symbol in group of data symbols.
In embodiments of the present invention, when subscriber equipment accesses multiple downlink member carrier simultaneously, base station can to user device transmissions data on Physical Downlink Shared Channel by each downlink member carrier, and subscriber equipment generates according to the situation receiving data the response message needing feedback.
In embodiments of the present invention, base station is that the downlink member carrier under carrier aggregation scene distributes response message channel, wherein, the member carrier that downlink member carrier is configuration or activates, when being assumed to be N number of downlink member carrier, base station is that each downlink member carrier configures 2 ack channels, then co-exist in 2N ack channel, N is natural number.
Such as, when N gets 2, there are two downlink member carriers, then base station is that each downlink member carrier distributes two ack channels, has 4 ack channels, and the transfer of data in two downlink member carriers on each downlink member carrier is configured to the transmission of the maximum support of energy two code words, each code word is independent of chnnel coding, independently carry out reception condition verification, therefore, response message corresponding to each code word can be fed back separately.
In actual applications, base station is that downlink member carrier distributes response message channel, a kind of optional implementation is, base station is by Physical Downlink Control Channel (PDCCH, PhysicalDownlinkControlChannel) control channel unit (CCE, ControlChannelElement) distributes response message channel for user.Such as, a PDCCH is made up of 1,2,4 or 8 CCE, and the CCE number of a composition PDCCH is relevant with the size of control channel content and the channel quality of user.When the channel quality of a user is very poor, in order to improve the performance of PDCCH, 8 CCE can be adopted to transmit the PDCCH of this user, at this moment the PDCCH of user can adopt very low encoder bit rate to resist the decline of channel.All available CCE have a numbering in a base station, so two ack channels corresponding to downlink member carrier the numbering of CCE corresponding to PDCCH corresponding to transfer of data on this downlink member carrier can calculate and derive, such as, number minimum numbering n_CCE with in the CCE corresponding to PDCCH, and n_CCE+1 calculates and derives.Another kind of attainable mode is, base station can configure two ack channels for downlink member carrier semi-static (semi-statically), or, base station is that downlink member carrier configures multipair ack channel, often pair of ack channel comprises two ack channels, and then when needing to use ack channel, in PDCCH, which in multipair ack channel instruction use ack signal.Another kind of attainable mode is, in conjunction with aforesaid all modes, such as, base station calculates derivation ack channel to the downlink member carrier had by the CCE that PDCCH is corresponding, base station directly configures two ack channels or multipair ack channel to the downlink member carrier had, and base station distributes corresponding response message channel to the PDSCH on descending sub frames different on same downlink member carrier according to the different methods of salary distribution.In actual applications, any one implementation or its combination can be taked, such as can use different modes according to the difference of type of service, a kind of mode is used for dynamic dispatching data service, for semi-continuous scheduling (SPS, Semi-persistentScheduling) in another way etc.
In actual applications, the response message channel group that the use of subscriber equipment transmission group of data symbols is detected in base station specifically can realize in the following way: base station, by energy detection method or coherence detection, gets the response message channel group that subscriber equipment transmission group of data symbols uses.
In embodiments of the present invention, base station can detect the response message channel group that the data symbol that subscriber equipment sends uses, such as, base station detects that subscriber equipment sends data symbol by ack channel 0 and ack channel 1, then base station can get the ack channel group of subscriber equipment use is (0,1).
It should be noted that in embodiments of the present invention, each response message channel in the response message channel group that base station detects is mapped with at least one data symbol in group of data symbols, and the total data symbol in the group of data symbols that subscriber equipment sends all has been mapped to the whole response message channels in the response message channel group that base station detects.Such as, the response message channel mapping the had data symbol in the response message channel group that base station detects, some mappings two data symbols etc.
602, base station is on the response message channel that the response message channel group detected is corresponding, and the data of demodulation response message channel bearing obtain a group of data symbols.
In embodiments of the present invention, after base station detects that subscriber equipment sends the response message channel group of data symbol, demodulation is carried out to the data symbol received in base station.Such as, when base station to response information channel group to the data demodulates of deserved response message channel bearing after be BPSK data symbol with QPSK symbol Q 1=-1, then by table 2 and table 4, the bit group that base station can get subscriber equipment transmission is ([1,1], [1]).
In actual applications, the data of base station this response message channel bearing of demodulation on the response message channel that the response message channel group detected is corresponding obtain a group of data symbols and are specifically as follows: demodulation is carried out to the data of each response message channel bearing in base station, obtain a data symbol in group of data symbols respectively.Concrete, demodulation can be carried out to the data of a time slot or two time slot carryings of replying each response message channel corresponding to information channel group in base station, obtains a data symbol in group of data symbols respectively.Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1,1], [1]).The response message channel group that base station detects is (0,1), the data of base station to a time slot of response information channel 0 or two time slot carryings carry out demodulation, just can obtain a data symbol [1 in group of data symbols, 1], the data of base station to a time slot of response information channel 1 or two time slot carryings carry out demodulation, just can obtain another data symbol [1] in group of data symbols, thus, the group of data symbols that base station can demodulate is ([1,1], [1]).
In actual applications, the data of base station this response message channel bearing of demodulation on the response message channel that the response message channel group detected is corresponding obtain a group of data symbols and can also be specifically: the data of base station to whole two the response message channel bearings in response information channel group carry out demodulation, obtain in group of data symbols that each is mapped in the data symbol on these two response message channels simultaneously.Concrete, the data of base station to the second time slot carrying of the first time slot of the first response message channel and the second response message channel carry out the data symbol that demodulation obtains group of data symbols; The data of base station to the 4th time slot carrying of the 3rd time slot of the first response message channel and the second response message channel carry out another data symbol that demodulation obtains group of data symbols.Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1,1], [1]).The response message channel group that base station detects is (0,1), demodulation is carried out to the data that a time slot of response information channel 0 and a time slot of response message channel 1 carry in base station, just can obtain a data symbol [1 in group of data symbols, 1], demodulation is carried out to the data that another time slot of response information channel 0 and another time slot of response message channel 1 carry in base station, just can obtain another data symbol [1] in group of data symbols, thus, the group of data symbols that base station can demodulate is ([1,1], [1]).
In actual applications, the data of base station this response message channel bearing of demodulation on the response message channel that the response message channel group detected is corresponding obtain a group of data symbols and can also be specifically: when group of data symbols comprises two data symbols, demodulation is carried out to the data of replying two response message channel bearings corresponding to information channel group in base station, obtains a data symbol of group of data symbols; Demodulation is carried out to the data of replying a response message channel bearing corresponding to information channel group in base station, obtains another data symbol of group of data symbols.
Concrete, when group of data symbols comprises two data symbols, the data of base station to two response message channel bearings corresponding to response information channel group carry out demodulation, and the data symbol obtaining group of data symbols comprises: the data symbol that demodulation obtains group of data symbols can be carried out to the data of the second time slot carrying of the first time slot of the first response message channel and the second response message channel in base station; Or the data symbol that demodulation obtains group of data symbols can be carried out to the data of the second time slot carrying of the 3rd time slot of the first time slot of the first response message channel, the first response message channel, the second response message channel in base station.
Concrete, demodulation is carried out to the data of replying a response message channel bearing corresponding to information channel group in base station, and another data symbol obtaining group of data symbols comprises: four time slot of base station to the second response message channel carries out another data symbol that demodulation obtains group of data symbols.
Such as, in table 6, subscriber equipment needs the response message of feedback to be response message (ACK in four channels of the first row in table 6, ACK, ACK, ACK), the group of data symbols that so subscriber equipment needs the response message of feedback corresponding is bit group ([1,1], [1]).The response message channel group that base station detects is (0, 1), demodulation is carried out to the data that a time slot of response information channel 0 and a time slot of response message channel 1 carry in base station, just can obtain a data symbol [1 in group of data symbols, 1], or, the response message channel group that base station detects is (0, 1), demodulation is carried out to the data that two time slots of response information channel 0 and a time slot of response message channel 1 carry in base station, just can obtain a data symbol [1 in group of data symbols, 1], the data of base station to another time slot carrying of response information channel 1 carry out demodulation, just can obtain another data symbol [1] in group of data symbols, thus, the group of data symbols that base station can demodulate is ([1, 1], [1]).
603, the group of data symbols that obtained by the response message channel group that detects and demodulation of base station, is searched response message mapping table, obtains the response message of subscriber equipment feedback.
In embodiments of the present invention, response message mapping table, according to the group of data symbols after the response message channel group detected and demodulation, is searched in base station, finds the response message that subscriber equipment feeds back.Such as, the response message group that base station obtains is ack channel group (0,1) and bit group ([1 corresponding to group of data symbols, 1], [1]), by look-up table 6, base station just can obtain subscriber equipment needs the response message to base station feedback to be HARQ-ACK (0) ACK, HARQ-ACK (1) ACK, HARQ-ACK (2) ACK, HARQ-ACK (3) ACK, base station judges accordingly, and subscriber equipment reception data cases is that each code word of two member carriers be have received by user data.
It should be noted that, the response message mapping table stored in a base station is specifically as follows as shown in table 6, certainly can also derive multiple response message to be feedback and the mapping table between response message channel group and group of data symbols according to this response message mapping table in actual applications, be only illustrate to be not construed as limiting herein.
In embodiments of the present invention, base station detects the response message channel group of subscriber equipment feedback response message, and demodulates the group of data symbols of subscriber equipment transmission, and finally, base station, by searching response message mapping table, gets the response message of subscriber equipment feedback.Because subscriber equipment in the embodiment of the present invention represents a kind of response message by a response message channel group and a group of data symbols, when the downlink member carrier that subscriber equipment receives is multiple carrier wave, can represent that subscriber equipment receives the reception condition of multiple downlink member carrier by response message channel group and the corresponding a kind of response message of group of data symbols, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.
Above embodiment describes sending method and the method for reseptance of the response message that the embodiment of the present invention provides, and next introduces the subscriber equipment from the sending method using this response message, refers to embodiment as shown in Figure 7.
As shown in Figure 7, subscriber equipment 700, comprising: response message generation unit 701, search unit 702, map unit 703, group of data symbols transmitting element 704, wherein,
Response message generation unit 701, generates the response message that the data of the downlink member carrier carrying that subscriber equipment 700 receives are corresponding.
In embodiments of the present invention, when subscriber equipment accesses multiple downlink member carrier simultaneously, base station can to user device transmissions data on PDSCH by each downlink member carrier, and response message generation unit 701 generates according to the situation receiving data the response message needing feedback.
In actual applications, subscriber equipment needs the response message of feedback, if feed back completely, response message to be feedback specifically comprises three kinds: ACK, NACK, DTX, and namely each code word needs to feed back three state, is ACK, NACK and DTX respectively.Response message to be feedback also can comprise two kinds: ACK, NACK/DTX, is specifically not construed as limiting.
Search unit 702, for searching response message mapping table, find the response message channel group corresponding with the response message generated and group of data symbols, wherein, the different response message channel included by response message channel group in response message mapping table is not identical.
In embodiments of the present invention, response message to be feedback is represented respectively by different response message channel group and different group of data symbols, a response message mapping table can be formed, in response message mapping table, response message channel group at least comprises two response message channels, the different response message channels included by response message channel group is not identical, and each response message channel comprises two time slots.
In actual applications, when base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, search unit 702 specifically for searching the response message mapping table as described in table 6, but can also derive multiple response message to be feedback and the mapping table between response message channel group and group of data symbols according to this response message mapping table under different application scenarioss, be only illustrate to be not construed as limiting herein.
Map unit 703, for being mapped at least one response message channel respectively by each data symbol in group of data symbols.
In embodiments of the present invention, the transmission of data symbol needs to be mapped to ack channel and could realize, and each data symbol needed in group of data symbols corresponding to the response message of feedback is mapped at least one response message channel by map unit 703.
In actual applications, map unit 703 specifically may be used for each data symbol in group of data symbols to be mapped to a response message channel respectively, and what namely each data symbol was unique is mapped in a response message channel.
In actual applications, when group of data symbols comprises two data symbols, map unit 703 specifically may be used for the data sign map of in group of data symbols to two response message channels; Another data symbol in group of data symbols is mapped to a response message channel.
In actual applications, when group of data symbols comprises two data symbols, map unit 703 specifically may be used for each data symbol in group of data symbols to be mapped to two response message channels.
Group of data symbols transmitting element 704, for the data symbol in group of data symbols being sent to base station on the response message channel be mapped to, gets the response message of user feedback to enable base station by the data symbol received in group of data symbols.
It should be noted that, the content such as information interaction, implementation between each module/unit of said apparatus, due to the inventive method embodiment based on same design, its technique effect brought is identical with the inventive method embodiment, particular content see describing in the inventive method embodiment, can repeat no more herein.
In embodiments of the present invention, search unit 702 by searching response message mapping table, find the response message channel group corresponding with the response message needing to feed back and group of data symbols, then, each data symbol in group of data symbols is mapped at least one response message channel by map unit 703 respectively, finally, data symbol in group of data symbols is sent to base station by group of data symbols transmitting element 704, because subscriber equipment in the embodiment of the present invention represents a kind of response message by a response message channel group and a group of data symbols, when the downlink member carrier that subscriber equipment receives is multiple carrier wave, can represent that subscriber equipment receives the reception condition of multiple downlink member carrier by response message channel group and the corresponding a kind of response message of group of data symbols, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.
Above embodiment describes the subscriber equipment that the embodiment of the present invention provides, and next introduces the base station that the embodiment of the present invention provides, and as shown in Figure 8, base station 800 comprises: detecting unit 801, demodulating unit 802, search unit 803, wherein,
Detecting unit 801, for detecting that subscriber equipment is for feeding back the response message channel group of response message, wherein, each the response message channel in response message channel group is mapped with at least one data symbol in group of data symbols.
In actual applications, detecting unit 801, specifically for by energy detection method or coherence detection, gets the response message channel group that subscriber equipment sends group of data symbols use.
Demodulating unit 802, for at response message channel corresponding to the response message channel group detected, the data of demodulation response message channel bearing obtain a group of data symbols, wherein, each data symbol in group of data symbols sends to described base station after being mapped at least one response message channel respectively by described subscriber equipment.
Search unit 803, for the group of data symbols obtained according to the response message channel group detected and demodulation, search response message mapping table, obtain the response message of subscriber equipment feedback.
In actual applications, the optional implementation of one of demodulating unit 802 is, demodulating unit 802, specifically for carrying out demodulation to the data of each the response message channel bearing in response information channel group, obtains a data symbol in group of data symbols respectively.
In actual applications, the optional implementation of one of demodulating unit 802 is, when group of data symbols comprises two data symbols, demodulating unit 802 is specifically for carrying out demodulation to the data of whole two the response message channel bearings in response information channel group, and each obtaining in group of data symbols is mapped in the data symbol on these two response message channels simultaneously; Demodulation is carried out to the data of replying a response message channel bearing corresponding to information channel group, obtains another data symbol of group of data symbols.
In actual applications, the optional implementation of one of demodulating unit 802 is, when group of data symbols comprises two data symbols, demodulating unit 802, specifically for carrying out demodulation to the data of replying two response message channel bearings corresponding to information channel group, obtains two data symbols of group of data symbols.
It should be noted that, the response message mapping table stored in a base station is specifically as follows as shown in table 6, repeats no more herein.Certainly can also derive multiple response message to be feedback and the mapping table between response message channel group and group of data symbols according to this response message mapping table in actual applications, be only illustrate to be not construed as limiting herein.
It should be noted that, the content such as information interaction, implementation between each module/unit of said apparatus, due to the inventive method embodiment based on same design, its technique effect brought is identical with the inventive method embodiment, particular content see describing in the inventive method embodiment, can repeat no more herein.
In embodiments of the present invention, detecting unit 801 detects the response message channel group that subscriber equipment is corresponding, and the group of data symbols that demodulating unit 802 pairs of subscriber equipmenies send carries out demodulation, finally, searching unit 803 by searching response message mapping table, getting the response message of subscriber equipment feedback.Because subscriber equipment in the embodiment of the present invention represents a kind of response message by a response message channel group and a group of data symbols, when the downlink member carrier that subscriber equipment receives is multiple carrier wave, can represent that subscriber equipment receives the reception condition of multiple downlink member carrier by response message channel group and the corresponding a kind of response message of group of data symbols, the situation that base station is the multiple downlink member carrier of user device configuration can be applicable to.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program completes, this program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
Above the sending method of a kind of response message provided by the present invention, method of reseptance and subscriber equipment and base station are described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, therefore, this description should not be construed as limitation of the present invention.

Claims (26)

1. a sending method for response message, is characterized in that, comprising:
Subscriber equipment generates response message corresponding to the data of the downlink member carrier carrying that described subscriber equipment receives;
Response message mapping table searched by subscriber equipment, finds the response message channel group corresponding with described response message and group of data symbols, and the different response message channel included by response message channel group in described response message mapping table is not identical;
Each data symbol in described group of data symbols is mapped to two response message channels by described subscriber equipment;
Data symbol in described group of data symbols is sent to base station by subscriber equipment on the described response message channel be mapped to.
2. the sending method of response message according to claim 1, is characterized in that,
In described group of data symbols an one data sign map comprises to two response message channels by described subscriber equipment:
Described subscriber equipment is by first time slot of the data sign map of in described group of data symbols to the first response message channel and the second time slot of the second response message channel; Or described subscriber equipment is by first time slot, three time slot of first response message channel, second time slot of second response message channel of the data sign map of in described group of data symbols to the first response message channel.
3. the sending method of response message according to claim 1, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
4. the sending method of response message according to claim 3, is characterized in that, in each group group of data symbols (a0, a1) _ i, the value of a0 is data symbol Q min one of them, the value of a1 is Q min one of them, m=0,1,2,3, described Q mvalue as shown in the table;
Q 0＝1 Q 1＝-j Q 2＝j Q 3＝-1
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively;
In each group group of data symbols (b0, b1) _ j, the value of b0 is data symbol Q min one of them, the value of b1 is Q min one of them, m=0,1,2,3, Q mvalue as shown above, when j gets different values, the b0 in group of data symbols (b0, b1) _ j divides other value different, or b1 divides other value different, or the value of b0 and b1 is all different respectively.
5. the sending method of response message according to claim 3, is characterized in that, in each group group of data symbols (a0, a1) _ i, the value of a0 is data symbol P min one of them, m=0,1,2, described P mvalue as shown in the table:
P 0＝1
P 1＝exp{j 2π/3} P 2＝exp{j 4π/3}
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively;
In each group group of data symbols (b0, b1) _ j, the value of b0 is data symbol P min one of them, the value of b1 is P min one of them, m=0,1,2, P mvalue as shown above, when j gets different values, the b0 in group of data symbols (b0, b1) _ j divides other value different, or b1 divides other value different, or the value of b0 and b1 is all different respectively.
6. the sending method of response message according to any one of claim 1 to 5, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding, it is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word, (0, 1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2, 3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes, ([1, 1], [1]), ([0, 1], [1]), ([1, 0], [1]), ([1, 1], [0]), ([1, 0], [0]), ([0, 1], [0]), ([0, 0], [0]), ([0, 0], [1]) the bit symbol group that the group of data symbols of feedback is corresponding is needed under being illustrated respectively in different response messages to be feedback.
7. a sending method for response message, is characterized in that, comprising:
Subscriber equipment generates response message corresponding to the data of the downlink member carrier carrying that described subscriber equipment receives;
Response message mapping table searched by subscriber equipment, finds the response message channel group corresponding with described response message and group of data symbols, and the different response message channel included by response message channel group in described response message mapping table is not identical;
Each data symbol in described group of data symbols is mapped to a response message channel by described subscriber equipment respectively;
Data symbol in described group of data symbols is sent to base station by subscriber equipment on the described response message channel be mapped to;
Each data symbol in described group of data symbols is mapped to a response message channel and comprises by described subscriber equipment respectively:
Each data symbol in described group of data symbols is mapped to a time slot or two time slots of a response message channel by described subscriber equipment respectively.
8. the sending method of the response message according to claim power 7, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding, it is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word, (0, 1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2, 3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes, ([1, 1], [1]), ([0, 1], [1]), ([1, 0], [1]), ([1, 1], [0]), ([1, 0], [0]), ([0, 1], [0]), ([0, 0], [0]), ([0, 0], [1]) the bit symbol group that the group of data symbols of feedback is corresponding is needed under being illustrated respectively in different response messages to be feedback.
9. a method of reseptance for response message, is characterized in that, comprising:
Base station detects that subscriber equipment is for feeding back the response message channel group of response message, and each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
The data of described base station to whole two the response message channel bearings in described response message channel group carry out demodulation, and each obtaining in described group of data symbols is mapped in the data symbol on these two response message channels simultaneously;
The group of data symbols that described base station is obtained by the response message channel group that detects and demodulation, searches response message mapping table, obtains the response message of described subscriber equipment feedback.
10. the method for reseptance of response message according to claim 9, is characterized in that, described group of data symbols comprises two data symbols;
Described base station data of response message channel bearing described in demodulation on the response message channel that the response message channel group detected is corresponding obtain a group of data symbols and comprise:
The data of described base station to two response message channel bearings corresponding to described response message channel group carry out demodulation, obtain a data symbol of described group of data symbols;
The data of described base station to a response message channel bearing corresponding to described response message channel group carry out demodulation, obtain another data symbol of described group of data symbols.
The method of reseptance of 11. response messages according to claim 10, is characterized in that, the data of described base station to two response message channel bearings corresponding to described response message channel group are carried out the data symbol that demodulation obtains described group of data symbols and comprised:
The data of described base station to the second time slot carrying of the first time slot of the first response message channel and the second response message channel carry out the data symbol that demodulation obtains described group of data symbols; Or the data of described base station to the 3rd time slot of the first time slot of the first response message channel, the first response message channel, the second time slot carrying of the second response message channel carry out the data symbol that demodulation obtains described group of data symbols;
The data of described base station to a response message channel bearing corresponding to described response message channel group are carried out another data symbol that demodulation obtains described group of data symbols and are comprised:
Four time slot of described base station to the second response message channel carries out another data symbol that demodulation obtains described group of data symbols.
The method of reseptance of 12. response messages according to claim 9, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
The method of reseptance of 13. response messages according to claim 12, is characterized in that, in each group group of data symbols (a0, a1) _ i, the value of a0 is data symbol Q min one of them, the value of a1 is Q min one of them, m=0,1,2,3, described Q mvalue as shown in the table;
Q 0＝1 Q 1＝-j Q 2＝j
Q 3＝-1
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively;
In each group group of data symbols (b0, b1) _ j, the value of b0 is data symbol Q min one of them, the value of b1 is Q min one of them, m=0,1,2,3, Q mvalue as shown above, when j gets different values, the b0 in group of data symbols (b0, b1) _ j divides other value different, or b1 divides other value different, or the value of b0 and b1 is all different respectively.
The method of reseptance of 14. response messages according to claim 12, is characterized in that, in each group group of data symbols (a0, a1) _ i, the value of a0 is data symbol P min one of them, m=0,1,2, described P mvalue as shown in the table:
P 0＝1 P 1＝exp{j 2π/3} P 2＝exp{j 4π/3}
When i gets different values, the a0 in group of data symbols (a0, a1) _ i divides other value different, or a1 divides other value different, or the value of a0 and a1 is all different respectively;
In each group group of data symbols (b0, b1) _ j, the value of b0 is data symbol P min one of them, the value of b1 is P min one of them, m=0,1,2, P mvalue as shown above, when j gets different values, the b0 in group of data symbols (b0, b1) _ j divides other value different, or b1 divides other value different, or the value of b0 and b1 is all different respectively.
The method of reseptance of 15. response messages according to any one of claim 9 to 14, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding, it is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word, (0, 1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2, 3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes, ([1, 1], [1]), ([0, 1], [1]), ([1, 0], [1]), ([1, 1], [0]), ([1, 0], [0]), ([0, 1], [0]), ([0, 0], [0]), ([0, 0], [1]) the bit symbol group that the group of data symbols of feedback is corresponding is needed under being illustrated respectively in different response messages to be feedback.
The method of reseptance of 16. 1 kinds of response messages, is characterized in that, comprising:
Base station detects that subscriber equipment is for feeding back the response message channel group of response message, and each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
Demodulation is carried out to the data of each the response message channel bearing in described response message channel group respectively in described base station, obtains a data symbol in described group of data symbols respectively;
The group of data symbols that described base station is obtained by the response message channel group that detects and demodulation, searches response message mapping table, obtains the response message of described subscriber equipment feedback;
The data of described base station to each response message channel bearing corresponding to described response message channel group are carried out the data symbol that demodulation obtains in described group of data symbols respectively and are comprised:
The data of described base station to a time slot of each response message channel corresponding to described response message channel group or two time slot carryings carry out demodulation, obtain a data symbol in described group of data symbols respectively.
The method of reseptance of 17. response messages according to claim 16, it is characterized in that, when described base station is user device configuration two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described response message mapping table is specially:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding, it is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word, (0, 1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2, 3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes, ([1, 1], [1]), ([0, 1], [1]), ([1, 0], [1]), ([1, 1], [0]), ([1, 0], [0]), ([0, 1], [0]), ([0, 0], [0]), ([0, 0], [1]) the bit symbol group that the group of data symbols of feedback is corresponding is needed under being illustrated respectively in different response messages to be feedback.
18. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Response message generation unit, the response message that the data for generating the downlink member carrier carrying that described subscriber equipment receives are corresponding;
Searching unit, for searching response message mapping table, finding the response message channel group corresponding with described response message and group of data symbols, the different response message channel included by response message channel group in described response message mapping table is not identical;
Map unit, for being mapped to two response message channels by each data symbol in described group of data symbols;
Group of data symbols transmitting element, for sending to base station by the data symbol in described group of data symbols on the described response message channel be mapped to.
19. subscriber equipmenies according to claim 18, it is characterized in that, when described base station two downlink member carriers that have been described user device configuration, when each downlink member carrier is assigned with two response message channels, described in search unit specifically for searching response message mapping table as described below:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
20. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Response message generation unit, the response message that the data for generating the downlink member carrier carrying that described subscriber equipment receives are corresponding;
Searching unit, for searching response message mapping table, finding the response message channel group corresponding with described response message and group of data symbols, the different response message channel included by response message channel group in described response message mapping table is not identical;
Map unit, for each data symbol in described group of data symbols is mapped to a response message channel respectively, comprising: the time slot or two time slots that each data symbol in described group of data symbols are mapped to respectively a response message channel;
Group of data symbols transmitting element, for sending to base station by the data symbol in described group of data symbols on the described response message channel be mapped to.
21. subscriber equipmenies according to claim 20, it is characterized in that, when described base station two downlink member carriers that have been described user device configuration, when each downlink member carrier is assigned with two response message channels, described in search unit specifically for searching response message mapping table as described below:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
22. 1 kinds of base stations, is characterized in that, comprising:
Detecting unit, for detecting that subscriber equipment is for feeding back the response message channel group of response message, each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
Demodulating unit, for carrying out demodulation to the data of whole two the response message channel bearings in described response message channel group, each obtaining in described group of data symbols is mapped in the data symbol on these two response message channels simultaneously;
Searching unit, for the group of data symbols that the response message channel group by detecting and demodulation obtain, searching response message mapping table, obtain the response message of described subscriber equipment feedback.
23. base stations according to claim 22, is characterized in that,
Described demodulating unit, specifically for carrying out demodulation to the data of two response message channel bearings corresponding to described response message channel group, obtains a data symbol of described group of data symbols; Demodulation is carried out to the data of a response message channel bearing corresponding to described response message channel group, obtains another data symbol of described group of data symbols.
24. base stations according to claim 22, it is characterized in that, when described base station is configured with two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described in search unit specifically for searching response message mapping table as described below:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
25. 1 kinds of base stations, is characterized in that, comprising:
Detecting unit, for detecting that subscriber equipment is for feeding back the response message channel group of response message, each the response message channel in described response message channel group is mapped with at least one data symbol in group of data symbols;
Demodulating unit, for carrying out demodulation to the data of each the response message channel bearing in described response message channel group, obtain a data symbol in described group of data symbols respectively, comprise: the data of described base station to a time slot of each response message channel corresponding to described response message channel group or two time slot carryings carry out demodulation, obtain a data symbol in described group of data symbols respectively;
Searching unit, for the group of data symbols that the response message channel group by detecting and demodulation obtain, searching response message mapping table, obtain the response message of described subscriber equipment feedback.
26. base stations according to claim 25, it is characterized in that, when described base station is configured with two downlink member carriers, when each downlink member carrier is assigned with two response message channels, described in search unit specifically for searching response message mapping table as described below:
Wherein, HARQ-ACK (0) represents the reception response message that first code word on first downlink member carrier is corresponding, HARQ-ACK (1) represents the reception response message that second code word on first downlink member carrier is corresponding, HARQ-ACK (2) represents that the reception response message that first code word on second downlink member carrier is corresponding, HARQ-ACK (3) represent the reception response message that second code word on second downlink member carrier is corresponding; It is correct that ACK represents that subscriber equipment receives code word, and NACK represents that subscriber equipment receives mistake to code word, and DTX represents that subscriber equipment does not receive code word, and NACK/DTX represents that subscriber equipment receives mistake to code word or do not receive code word; (0,1) a response message channel group is represented, comprise response message channel 0 and response message channel 1, response message channel 0 and response message channel 1 are described base station is respectively two response message channels that first downlink member carrier distributes, (2,3) another response message channel group is represented, comprise response message channel 2 and response message channel 3, response message channel 2 and response message channel 3 are described base station is respectively two response message channels that second downlink member carrier distributes; (a0, a1) _ i represents group of data symbols, i=1,2 ... 8, represent different group of data symbols when i gets different values, (b0, b1) _ j represents group of data symbols, j=1,2 ..., 8, represent different group of data symbols when j gets different values.
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