CN102123018A - Method for feeding back receiving state in hybrid automatic retransmitting request - Google Patents
Method for feeding back receiving state in hybrid automatic retransmitting request Download PDFInfo
- Publication number
- CN102123018A CN102123018A CN2010100045663A CN201010004566A CN102123018A CN 102123018 A CN102123018 A CN 102123018A CN 2010100045663 A CN2010100045663 A CN 2010100045663A CN 201010004566 A CN201010004566 A CN 201010004566A CN 102123018 A CN102123018 A CN 102123018A
- Authority
- CN
- China
- Prior art keywords
- nack
- ack
- accepting state
- accepting
- dtx
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a method for feeding back a receiving state in an HARQ (Hybrid Automatic Retransmitting Request). In the method, UE (User Equipment) selects to feed back the receiving state on two ACK/NACK (Acknowledgment/Negative Acknowledgement) channels by configuring an ACK/NACK mapping table, so that the number of ACK/NACK channels used by the UE when the receiving state is fed back is reduced, CM (Cubic Metric) of uplink and downlink signals is reduced, the maximum transmission power which can be used by each ACK/NACK channel is improved, and normal transmission of data is guaranteed.
Description
Technical field
The present invention relates to mix automatic repeat requests (HARQ) technology, refer to the method for feedback accepting state among a kind of HARQ especially.
Background technology
Long Term Evolution (LTE) system is based on mixes the system that automatic repeat requests (HARQ) is carried out transfer of data.Whether whether the recipient according to receiving data, and correctly receive, to transmit leg feedback acknowledgment (ACK), deny the accepting state of (NACK) or discontinuous transmission (DTX).Wherein, ACK represents correctly to receive data; NACK represents that mistake receives data, and DTX represents not receive data.Here, DTX has reacted a kind of accepting state, and the recipient is actual not to send feedback data to transmit leg.
In order to support higher transmission rate, in strengthening Long Term Evolution (LTE-A) system, obtain bigger bandwidth of operation by combination a plurality of unit carrier waves (CC), constitute communication system down link and up link, i.e. carrier combination (Carrier Aggregation).For example, obtain the bandwidth of 100MHz by the CC that makes up 5 20MHz.
The LTE-A system has proposed a kind of method that is applied to the UE feedback accepting state of carrier combination transmission means.In the method, UE receives downlink data simultaneously on N CC, corresponding one or two ACK/NACK channel of each downlink data, and then UE sends accepting state at least simultaneously on this N ACK/NACK channel.The parallel ACK/NACK channel number that takies is many more, and then the cubic metric of uplink and downlink signals (CM) value is big more, and the operable maximum transmit power of each ACK/NACK channel is also more little.
Therefore, use the method for existing feedback accepting state, can increase the CM of uplink and downlink signals, reduce the operable maximum transmit power of each ACK/NACK channel, influenced power amplifier efficient, limited the covering of upward signal, and then influenced the normal transmission of data.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method for feedback accepting state among a kind of HARQ, use the CM that method of the present invention can reduce uplink and downlink signals, improve the operable maximum transmit power of each ACK/NACK channel, ensure the normal transmission of data.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of mixing feedback accepting state in the automatic repeat requests is applicable to that mobile terminal UE goes up downlink data receiving from a plurality of unit carrier wave CC, and this method comprises:
UE is when a plurality of CC receive downlink data, determines the accepting state of current feedback according to the situation of downlink data receiving, and the accepting state of feedback is divided into two groups; Wherein, accepting state comprises ACK, NACK and discontinuous transmission DTX;
The corresponding every group of ACK/NACK mapping table of searching each group correspondence of UE obtains to send resource, sends the transmission symbol of correspondence on the ACK/NACK channel that sends resource description.
The method of feedback accepting state among a kind of HARQ provided by the present invention, by configuration ACK/NACK mapping table, UE is chosen on two ACK/NACK channels feeds back accepting state, reduce UE ACK/NACK channel number that uses when the feedback accepting state, reduced the CM of uplink and downlink signals, improve the operable maximum transmit power of each ACK/NACK channel, ensured the normal transmission of data.
In addition, sending another benefit of accepting state by two ACK/NACK channels is when UE has disposed 2 power amplifiers and 2 antennas, in fact UE can send ACK/NACK information with different antennas on different ACK/NACK channels, be that transmission signal on each antenna all satisfies single-carrier nature, thereby the CM value does not increase.
Description of drawings
Fig. 1 is the flow chart of the inventive method;
Fig. 2 receives the grouping schematic diagram of data from 4 CC for UE of the present invention;
Fig. 3 is the grouping schematic diagram of UE in the FDD of the present invention system from 5 CC reception data;
Fig. 4 is the grouping schematic diagram of UE in the TDD of the present invention system from 5 CC reception data;
Fig. 5 is the grouping schematic diagram of another UE in the FDD of the present invention system from 5 CC reception data.
Embodiment
Technical scheme of the present invention is for fear of feed back accepting state on each ACK/NACK channel, be chosen on two ACK/NACK channels and feed back accepting state, and then by reducing the ACK/NACK channel number that uses, reduce the CM of uplink and downlink signals, improve the operable maximum transmit power of each ACK/NACK channel, ensured the normal transmission of data.
Referring to Fig. 1, Fig. 1 is the exemplary process diagram of the inventive method, is applicable to that UE goes up downlink data receiving from a plurality of CC.Be specially, in step 101, UE is when a plurality of CC receive downlink data, determines the accepting state of current feedback according to the situation of downlink data receiving, and the accepting state of feedback is divided into two groups; In step 102, the corresponding every group of ACK/NACK mapping table of searching each group correspondence of UE obtains to send resource, sends the transmission symbol of correspondence on the ACK/NACK channel that sends resource description.Wherein, the generating mode of ACK/NACK mapping table is: accepting state is divided into two groups, respectively gathering of accepting state composition distributes corresponding transmission resource in two groups, comprise an ACK/NACK channel and transmission symbol in each transmission resource.
Below technical scheme of the present invention is carried out brief description.Suppose that UE receives data from 4 CC, and each CC needs to feed back the accepting state of 2 code words, the ACK/NACK channel of two correspondences of existence.Like this, UE needs the accepting state of 8 code words of feedback once behind 4 CC downlink data receivings, with two groups of 4 one group of accepting state, as shown in Figure 2.And determine to send resource according to spendable ACK/NACK channel of reality and the amount of information that sends symbol, for accepting state is that each set of 4 distributes corresponding transmission resource, and then generate the ACK/NACK mapping table.This table can be as shown in Table 1.
Table one
Table one is depicted as the situation that adopts quarternary phase-shift keying (QPSK) signal (QPSK) to modulate at the ACK/NACK channel.Corresponding 4 constellation point of QPSK modulation can reflect 4 kinds of amount of information; In addition, every group of operable ACK/NACK number of channel is 4, and the every group of transmission used resource altogether is 4*4=16 like this, and wherein each sends quadrature amplitude modulation (QAM) sign indicating number that resource comprises an ACKNACK channel and correspondence.Group one adopts identical ACK/NACK mapping table with group two.Channel indexes is the corresponding successively numbering of each code word, and promptly in first group, channel indexes is first code word of 0 the corresponding CC# 0 of ACK/NACK channel, i.e. AN#0; Channel indexes is second code word, the i.e. AN# 1 of the corresponding CC# 0 of 1 ACK/NACK channel; Channel indexes is first code word of the corresponding CC# 1 of 2 ACK/NACK channel, i.e. AN# 2; Channel indexes is second code word, the i.e. AN# 3 of the corresponding CC# 1 of 3 ACK/NACK channel.Carry out second group of when mapping at the ACK/NACK mapping table shown in the use table one, channel indexes is first code word of 0 the corresponding CC# 2 of ACK/NACK channel; Channel indexes is second code word of the corresponding CC# 2 of 1 ACK/NACK channel; Channel indexes is first code word of the corresponding CC# 3 of 2 ACK/NACK channel; Channel indexes is second code word of the corresponding CC# 3 of 3 ACK/NACK channel.
Then, sending resource allocations with these 16 is one group various set to 4 accepting states, and table one is exactly a kind of method of salary distribution wherein.As can be seen in Table 1, Bu Fen transmission resource has been assigned to a plurality of accepting state set.
Supposing that UE is current receives data from 4 CC, the accepting state that needs feedback as shown in Table 2:
Table two
Then UE is according to packet mode same as described above, and four code words of CC# 0 and CC# 1 are divided into one group, and four code words of CC# 2 and CC# 3 are divided into one group, and promptly AN# 0, AN# 1, AN# 2 and AN# 3 are one group; AN# 4, AN# 5, AN# 6 and AN# 7 are one group.According to the ACK/NACK mapping table shown in the table one, the transmission resource of first group of correspondence is: be numbered 0 ACK/NACK channel, corresponding qam symbol is 0,0; The transmission resource of second group of correspondence is: be numbered 3 ACK/NACK channel, corresponding qam symbol is 0,1.At this moment, UE then at the ACK/NACK channel of first code word correspondence of CC# 0, sends qam symbol (0,0); At the ACK/NACK channel of second code word correspondence of CC# 3, send qam symbol (0,1).
More than by a simple example technical scheme of the present invention has been done a concise and to the point introduction.Below the each side of technical solution of the present invention is described in further detail.
It at first is the number of the accepting state that need feed back about UE.The transmission means that the CC that receives according to the system at UE place and UE uses, UE need feed back the accepting state of different numbers.In mode of frequency division duplexing (FDD) system,, when not adopting many antenna transmission and many antennas to receive (MIMO) transmission data, need 1 accepting state of feedback to a descending CC; When adopting MIMO to send data, need 2 accepting states of feedback; In the TDD system, all have at each CC under the situation of 2 descending sub frames, all need to feed back an accepting state at each descending sub frame.Therefore, when determining the accepting state number that UE need feed back, only need obtaining altogether according to the situation of each CC, the accepting state number of needs feedback gets final product.
Secondly about accepting state being divided into two groups, can be to comprise two groups that the accepting state number equates, also can be to comprise two groups that the accepting state number does not wait.Concrete, can adopt following packet mode to divide into groups.Determine the number of UE feedback accepting state according to the transmission means of CC, accepting state is divided into two groups that comprise the individual and individual accepting state of floor (X/2) of ceil (X/2) respectively; Wherein, ceil is last bracket function, and floor is following bracket function, and X is the number of UE feedback accepting state.When the number of feedback accepting state when being X=8, ceil (X/2)=floor (X/2)=4, this kind situation then is that to be divided into 4 accepting states be one group two groups; When the number of feedback accepting state when being X=7, ceil (X/2)=4, floor (X/2)=3, then be to be divided into the accepting state number to be respectively 4 and 3 two groups this moment.
FDD system for example, calculate the maximum number X of the accepting state of needs feedback according to the transmission mode on each descending CC of base station configuration UE reception, and accepting state is divided into two groups according to this maximum number X, two groups comprise ceil (X/2) and the individual accepting state of floor (M/2) respectively, here ceil is last bracket function, and floor is following bracket function.When the downlink data on the CC need feed back 2 accepting states, these two accepting states were divided as much as possible into same group.To a CC, need to feed back two accepting states under the transmission mode normal condition of supposing to dispose, MIMO transmission mode for example, when UE is operated in Regression Model (fallback mode), be that UE only need feed back an effective accepting state, at this moment UE still needs to feed back two accepting states, and that accepting state of increase is set to NACK.Suppose that the UE configuration has received 5 CC, the transmission mode of preceding 3 CC configuration need be fed back 2 accepting states, and the transmission mode of latter two CC configuration only need be fed back an accepting state.The maximum accepting state number of the UE ACK/NACK that need feed back is 8 like this, adopts technical scheme of the present invention then to comprise 4 accepting states in each group when grouping.For example, can be that two accepting states of CC# 0 and two accepting states of CC# 1 are divided into first group; Other accepting states are second group.
In addition, UE can be set each CC is fed back two accepting states, like this, the number of descending CC is N, and then accepting state adds up to 2N.Accepting state is divided into 2 groups, and every group comprises N accepting state.Here, two of same CC accepting states are divided as much as possible into same group.When effective accepting state of a CC reality was one, for example this CC had disposed the transmission mode of non-MIMO, perhaps for Regression Model,, UE still needs two accepting states of this CC feedback, and that accepting state of increase is set to NACK.For example, when UE goes up downlink data receiving from 4 CC, CC# 1 and CC# 3 all need to feed back 2 accepting states, and CC# 0 and CC# 2 all only need 1 accepting state of feedback.At this moment, be the NACK accepting state then to CC# 0 and CC# 2 one of increase.But actual operable ACK/NACK channel only is 6.
Moreover, about sending resource.Sending resource determines according to spendable ACK/NACK channel and the effable amount of information of transmission symbol.Spendable ACK/NACK channel is for receiving the channel of actual reception downlink data correspondence; Sending symbol is to determine according to concrete modulation system.When using the QPSK modulation, because there are 4 constellation point in it, therefore a qam symbol can reflect 4 amount of information.When every group of spendable ACK/NACK channel is 5, then spendable altogether transmission resource is 5 * 4=20.So just 5 formed all set of accepting state need be assigned to these 20 and send resource.
About spendable ACK/NACK channel wherein, to not adopting the CC of MIMO transmission data, only need 1 code word ACK/NACK bit of feedback, then the ACK/NACK channel of its mapping is by a control channel unit (CCE) of Physical Downlink Control Channel (PDCCH), and for example the index of the CCE of index minimum is determined; To the professional initial transmission of semi-persistent scheduling (SPS), this ACK/NACK channel is high-rise semi-static configuration.To adopting the CC of MIMO transmission data, because need the ACK/NACK information of 2 code words of feedback, correspondence requires to have two ACK/NACK channels.For example, the ACK/NACK channel of CW# 0 correspondence is by the minimum CCE index decision of PDCCH, and the ACK/NACK channel of CW# 1 correspondence is by second of the PDCCH little CCE index decision.Perhaps, the ACK/NACK channel of CW# 0 correspondence is by the minimum CCE index decision of PDCCH, and the ACK/NACK channel of CW# 1 correspondence is determined with additive method.
In addition, no matter what the transmission mode on the CC of base station configuration is, when thereby reality in the CC only sends a CW and only need feed back an ACK/NACK state, for example only there are CW# 0 and corresponding ACK/NACK bit thereof, then the base station only need guarantee to exist an available ACK/NACK channel, and for example it can be the ACK/NACK channel of the minimum CCE correspondence of PDCCH.To not sending the CC of downlink data, there are not corresponding ACK/NACK information and ACK/NACK channel, can think that this CC need feed back DTX.Send the transmission mode of 2 CW generally speaking, when reality only sent a CW, another CW did not exist, and did not promptly have the ACK/NACK bit and the ACK/NACK channel of second CW correspondence; When need guaranteeing to select the ACK/NACK channel, the mapping method of ACK/NACK feedback information only in esse ACK/NACK channel, selects.
At last, send resource about distributing.As implied above, when 5 accepting states,, therefore always have 3 because each accepting state has 3 kinds of possibilities
5Plant the accepting state set.When sending resource allocation to each accepting state set with 20, can reception condition for what guarantee that it can react UE really, when distributing corresponding transmission resource for each accepting state set, under the situation of accepting state set number greater than the transmission number of resources, selection with DTX as the accepting state that is equal to NACK, and/or with (NACK, ACK), (NACK, NACK) and (DTX, DTX), and/or will (ACK, NACK), (NACK, ACK), (NACK, NACK) and (DTX, DTX) merging the accepting state set as the accepting state that is equal to, the accepting state number of sets after the merging is equated with the number that sends resource, is the transmission resource of accepting state set distribution correspondence; Wherein, two accepting states of the corresponding same CC of () expression.
This is because DTX is not for receiving data, and NACK is for receiving error in data, and they all feed back needs to retransmit, and is therefore distributing the transmission resource to influence DTX and NACK equivalent processes smaller.In addition, to two ACK/NACK of same CC, because the shared identical feedback signaling of channel condition class Sihe, the correlation of two ACK/NACK can be more intense, and it is less to the influence of throughput to merge same CC2 such code word ACK/NACK.Like this, can be mapped to identical resource status to some feedback informations merging of 2 code word ACK/NACK information of same CC.For example, can with (NACK, ACK), (NACK, NACK) and DTX as same feedback states; And incite somebody to action (ACK, ACK), (ACK is NACK) respectively as a feedback states.In the realization of scheduler, be to make the reliability of first code word higher, thereby (ACK is NACK) than (NACK, ACK) probability of Chu Xianing is big, further reduces the adverse effect of above-mentioned merging than second code word.Another benefit of this merging method is when thereby this CC reality only sends first code word and feeds back an ACK/NACK bit, and this merging method is supported first code word feeding back ACK or NACK/DTX.
Specifically be to adopt DTX and NACK to be equal to, (NACK, ACK), (NACK is NACK) with (DTX DTX) is equal to, and (ACK, NACK), (NACK, ACK), (NACK, NACK) and (DTX, DTX) one or more merging modes in being equal to are to determine flexibly according to number that sends resource and accepting state number.
When generating the ACK/NACK mapping table of every group of correspondence, if accepting state equates in two groups, two groups can be adopted identical ACK/NACK mapping table.
When distributing corresponding transmission resource for each accepting state set, be the accepting state set of DTX entirely for accepting state, because it is actual in not returning any information, therefore do not distribute corresponding transmission resource for it.
Following UE is an example from 5 CC downlink data receivings, describes the several examples that generate the ACK/NACK mapping table.
What describe in the example one is UE downlink data receiving from 5 CC in the FDD system, and each CC need feed back two accepting states.
Referring to Fig. 3, Fig. 3 is the grouping situation of accepting state.Two code words of two code words of CC# 0, CC# 1 and the CW# 0 of CC# 2 are divided into first group; Other code words are second group.
Referring to table three, table three is to ACK/NACK mapping table that should situation.First group is used identical mapping table with second group.When needs shine upon the accepting state of 5 bits, even NACK and the shared identical feedback states of DTX, the resource status number that needs is still greater than available resource status number, so the accepting state of feedback can be done further to merge, promptly further a plurality of feedback informations are mapped to identical resource status.
Table three
Explanation about table three.In order to save the shared space of list item, when drawing table three, NACK and the DTX with CC# 2 first code word is equal to.In addition, to CC# 0 and CC# 1, because 2 downlink datas of 2 ACK/NACK correspondences are dispatched simultaneously with same PDCCH in same subframe, so an accepting state can not occur is ACK or NACK, and another is the situation of DTX, therefore also this situation is directly removed simultaneously in drafting table three.
From table three as can be seen, in this example, except NACK and DTX with CC# 2 first code word are equal to, also to CC# 0 and CC# 1, respectively will (NACK, ACK), (NACK, NACK) and (DTX DTX) is equal to.For example, the CC# 1 in the state 3 and 6, the CC# 0 in the state 7 and 8, then these three kinds of states of CC# 0 and CC# 1 all are equal in state 9.State 12,15,16,17 and 18 then is to be the corresponding situation of NACK/DTX at CC# 2.
The concrete method that generates can be: 5 alternative ACK/NACK channels are arranged, with the QPSK modulation 4 constellation point are arranged on each channel, so the sum of available resources state is 20.So, need in 20, send resource allocation to each accepting state to 5 bit ACK/NACK.According to the group technology of Fig. 3, preceding two ACK/NACK bits belong to same CC in these 5 bits; The 3rd and the 4th ACK/NACK bit also belong to same CC; Having only the 5th ACK/NACK bit is to belong to a CC separately.To preceding two ACK/NACK bits, can (ACK, ACK), (ACK, NACK) respectively as a feedback states, and (NACK, ACK), (NACK, NACK) and DTX as same feedback states; Equally, the 3rd is merged according to identical method with the 4th ACK/NACK bit; The 5th ACK/NACK bit do not merge.After adopting this method to merge, the resource needed status number just in time equals 20.Table three is an example just, and the present invention does not limit and adopts the concrete form that other ACK/NACK channels are selected and constellation point is distributed.
When selecting the ACK/NACK channel according to the ACK/NACK feedback information, principle is when existing one or more ACK/NACK bit to be ACK, selects one and be used to send ACK/NACK information from these are the ACK/NACK channel of ACK/NACK bit correspondence of ACK; When not having ACK in the feedback information, send ACK/NACK information at the ACK/NACK channel of the feedback information ACK/NACK bit correspondence that is NACK.
After selecting the ACK/NACK channel according to the ACK/NACK feedback information, also need to determine on selected ACK/NACK channel, will send qam symbol, the present invention does not limit the method for mapping qam symbol.
What describe in the example two is the situation that UE comprises two subframes in the TDD system from the last downlink data receiving of 5 CC and each CC.Referring to Fig. 4, Fig. 4 is the grouping schematic diagram of this example accepting state.To a CC, the ACK/NACK information in each subframe all obtains 1 ACK/NACK information by the space binding, thereby obtains the ACK/NACK information of 2 bindings, and corresponding two ACK/NACK channels.Under the situation of TDD, can adopt the packet mode identical with example one.That is, the subframe # 0 attitude of two the subframe attitudes of two of CC# 0 subframes, CC# 1 and CC# 2 is divided into first group; Other subframes are second group.First group is used identical ACK/NACK mapping table with second group.Referring to table four, it is the ACK/NACK mapping table of example that table four is one first group.
Table four
The environment at example two and example one different is UE place is different, and example one is FDD, and example two is TDD.In the FDD system, under the situation that adopts the MIMO transmission means,, be ACK or NACK so can not an accepting state occur, and another is the situation of DTX because 2 downlink datas are to dispatch simultaneously with same PDCCH in same subframe.But in the TDD system, 2 downlink datas are not to use in the same subframe and dispatch with same PDCCH, and therefore an accepting state may occur is ACK or NACK, and another is the situation of DTX.
Therefore, adopting the mode identical, some accepting states merging of 2 subframes of same CC are mapped to identical resource with example one.Promptly (NACK, ACK), (NACK, NACK) and (DTX, after accepting state DTX) was equal to, required number of resources was 22, still greater than 20 provided transmission number of resources.Therefore, again further with some of (ACK, NACK), (NACK, ACK), (NACK, NACK) and (DTX, DTX) as the accepting state that is equal to, the CC# 1 in the concrete visible state 2, the CC# 0 in the state 6.
Gathering according to the ACK/NACK accepting state when selecting the ACK/NACK channel, identical with example one, when existing one or more ACK/NACK bit to be ACK, from these are the ACK/NACK channel of ACK/NACK bit correspondence of ACK, select one and be used to send ACK/NACK information; When not having ACK in the feedback information, send ACK/NACK information at the ACK/NACK channel of the feedback information ACK/NACK bit correspondence that is NACK.After selecting the ACK/NACK channel according to the ACK/NACK feedback information, also need to determine on selected ACK/NACK channel, will send qam symbol, the present invention does not limit the method for mapping qam symbol.Table four is an example just, and the present invention does not limit and adopts the concrete form that other ACK/NACK channels are selected and constellation point is distributed.
Example three is described is UE downlink data receiving from 5 CC in the FDD system.Wherein, CC# 0, CC# 1 and CC# 2 adopt the MIMO transmission means, need 2 code words of feedback, and CC# 3 and CC# 4 do not adopt the MIMO transmission means, only need to feed back 1 code word, promptly need to feed back 8 code words altogether.Like this, be divided into two groups, then comprise 4 code words in every group.
Referring to Fig. 5, Fig. 5 is the grouping schematic diagram of example three.Two code words of CC# 0, two code words of CC# 1 are first group; Two code words of CC# 2, the code word of CC# 3, the code word of CC# 4 is divided into second group.
Referring to table five and table six.In this example, two groups are adopted different ACK/NACK mapping tables.Corresponding first group of table five, corresponding second group of table six.
Table five
Table six
Figure five and figure six merge according to method same as described above, do not repeat them here.
In technical scheme of the present invention, UE feeds back accepting state by being chosen on two ACK/NACK channels, and then the minimizing ACK/NACK channel number that uses, therefore reduce the CM of uplink and downlink signals, improve the operable maximum transmit power of each ACK/NACK channel, ensured the normal transmission of data.In addition, sending another benefit of accepting state by two ACK/NACK channels is when UE has disposed 2 power amplifiers and 2 antennas, in fact UE can send ACK/NACK information with different antennas on different ACK/NACK channels, be that transmission signal on each antenna all satisfies single-carrier nature, thereby the CM value does not increase.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is mixed the method for feeding back accepting state in the automatic repeat requests, is applicable to that mobile terminal UE goes up downlink data receiving from a plurality of unit carrier wave CC, is characterized in that this method comprises:
UE is when a plurality of CC receive downlink data, determines the accepting state of current feedback according to the situation of downlink data receiving, and the accepting state of feedback is divided into two groups; Wherein, accepting state comprises ACK, NACK and discontinuous transmission DTX;
The corresponding every group of ACK/NACK mapping table of searching each group correspondence of UE obtains to send resource, sends the transmission symbol of correspondence on the ACK/NACK channel that sends resource description.
2. method according to claim 1 is characterized in that,
The generating mode of described ACK/NACK mapping table is: accepting state is divided into two groups, respectively gathering of accepting state composition distributes corresponding transmission resource in two groups, comprise an ACK/NACK channel and transmission symbol in each transmission resource.
3. method according to claim 2 is characterized in that,
This method comprises that further UE is set all feeds back two accepting states to each CC, will be configured to NACK because of the accepting state that setting increases.
4. method according to claim 3 is characterized in that,
Describedly accepting state is divided into two groups is: accepting state is divided into two groups that number equates.
5. method according to claim 2 is characterized in that, describedly accepting state is divided into two groups is:
Determine the number of UE feedback accepting state according to the transmission means of CC, described accepting state is divided into two groups that comprise the individual and individual accepting state of floor (X/2) of ceil (X/2) respectively; Wherein, ceil is last bracket function, and floor is following bracket function, and X is the number of UE feedback accepting state.
6. according to the described method of arbitrary claim in the claim 2 to 5, it is characterized in that, when accepting state is divided into two groups, will divide in one group corresponding to the accepting state of same CC as far as possible.
7. according to the described method of arbitrary claim in the claim 2 to 5, it is characterized in that, when distributing corresponding transmission resource for each accepting state set, under the situation of accepting state set number greater than the transmission number of resources, selection with DTX as the accepting state that is equal to NACK, and/or will (NACK, ACK), (NACK is NACK) with (DTX, DTX), and/or will (ACK, NACK), (NACK, ACK), (NACK, NACK) and (DTX, DTX) merging the accepting state set as the accepting state that is equal to, the accepting state number of sets after the merging is equated with the number that sends resource, is the transmission resource of accepting state set distribution correspondence; Wherein, two accepting states of the corresponding same CC of () expression.
8. method according to claim 7 is characterized in that, when distributing corresponding transmission resource for each accepting state set, is the accepting state set of DTX entirely for accepting state, does not distribute corresponding transmission resource for it.
9. according to the described method of arbitrary claim in the claim 1 to 5, it is characterized in that adopt quarternary phase-shift keying (QPSK) signal QPSK modulation on the ACK/NACK channel, described transmission symbol is a qam symbol.
10. according to the described method of arbitrary claim in the claim 2 to 5, it is characterized in that described each set that accepting state in two groups is formed distributes corresponding transmission resource to be:
When distributing the ACK/NACK channel that sends in the resource for each accepting state set, having one or more accepting state in the accepting state set is under the situation of ACK, distributes the ACK/NACK channel of one of them ACK correspondence for this accepting state set as far as possible; In the accepting state set, do not have under the situation of ACK, distribute the ACK/NACK channel of one of them NACK correspondence for this accepting state set as far as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100045663A CN102123018A (en) | 2010-01-11 | 2010-01-11 | Method for feeding back receiving state in hybrid automatic retransmitting request |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100045663A CN102123018A (en) | 2010-01-11 | 2010-01-11 | Method for feeding back receiving state in hybrid automatic retransmitting request |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102123018A true CN102123018A (en) | 2011-07-13 |
Family
ID=44251485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100045663A Pending CN102123018A (en) | 2010-01-11 | 2010-01-11 | Method for feeding back receiving state in hybrid automatic retransmitting request |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102123018A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155735A1 (en) * | 2011-07-19 | 2012-11-22 | 中兴通讯股份有限公司 | Method and device for deciding physical downlink control channel resource |
| CN103986551A (en) * | 2011-07-19 | 2014-08-13 | 中兴通讯股份有限公司 | Method and apparatus for determining PDCCH (physical downlink control channel) resources |
| CN105790897A (en) * | 2014-12-26 | 2016-07-20 | 北京三星通信技术研究有限公司 | Method and equipment for hybrid automatic repeat request (HARQ) |
| CN110337791A (en) * | 2017-03-23 | 2019-10-15 | 株式会社Ntt都科摩 | Feedback method and communication equipment |
| WO2020134450A1 (en) * | 2018-12-26 | 2020-07-02 | 华为技术有限公司 | Information transmission method and device |
-
2010
- 2010-01-11 CN CN2010100045663A patent/CN102123018A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155735A1 (en) * | 2011-07-19 | 2012-11-22 | 中兴通讯股份有限公司 | Method and device for deciding physical downlink control channel resource |
| CN103986551A (en) * | 2011-07-19 | 2014-08-13 | 中兴通讯股份有限公司 | Method and apparatus for determining PDCCH (physical downlink control channel) resources |
| CN102892186B (en) * | 2011-07-19 | 2017-05-10 | 中兴通讯股份有限公司 | Method and device for determining physical downlink control channel resource |
| CN103986551B (en) * | 2011-07-19 | 2018-08-21 | 南京中兴软件有限责任公司 | A kind of determination method and device of physical downlink control channel resource |
| CN105790897A (en) * | 2014-12-26 | 2016-07-20 | 北京三星通信技术研究有限公司 | Method and equipment for hybrid automatic repeat request (HARQ) |
| CN105790897B (en) * | 2014-12-26 | 2020-10-30 | 北京三星通信技术研究有限公司 | Method and equipment for hybrid automatic repeat request (HARQ) |
| CN110337791A (en) * | 2017-03-23 | 2019-10-15 | 株式会社Ntt都科摩 | Feedback method and communication equipment |
| WO2020134450A1 (en) * | 2018-12-26 | 2020-07-02 | 华为技术有限公司 | Information transmission method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102237992B (en) | Method for feeding back data receiving status | |
| CN101998539B (en) | ACK/NACK resource reservation method, system and device | |
| CN102783053B (en) | For defining the method and apparatus of the transmitting-receiving timing of physical channel in the tdd communication systems supporting intersection carrier dispatching | |
| CN101594211B (en) | Method for sending correct/wrong response message in multicarrier system with big bandwidth | |
| CN101588224B (en) | Method and system for transmitting correct/wrong reply message | |
| CN102123019B (en) | Downlink data transmission for wireless communication system performs the method for ACK/NACK feedback | |
| CN101588226B (en) | Terminal in large bandwidth multi-carrier system and a sending method of response message | |
| CN103378954B (en) | The method for supporting to send the distribution HARQ-ACK channel resource of diversity and channel selection | |
| CN102647261B (en) | Scheduling signaling sending and response feedback method, system and equipment | |
| US20120044871A1 (en) | Method for feeding back acknowledgement/negative-acknowledgement message in multi-carrier system | |
| CN102468940B (en) | Scheduling request and ACK/NACK (acknowledgement/negative acknowledgement) information transmission method and device | |
| CN101834658B (en) | A kind of uplink control signaling sending method and equipment | |
| CN102638879A (en) | Method for allocating acknowledgement (ACK)/negative acknowledgement (NACK) channel resource | |
| CN102469596A (en) | ACK/NACK channel resource distributing method capable of supporting channel selection | |
| CN103199961A (en) | Method adopting transmission diversity technique to transmit HARQ-ACK information | |
| CN102083211A (en) | Determining method and equipment of uplink control channel resources | |
| CN102769507A (en) | Method for transmission of acknowledgement or negative acknowledgement information on physical uplink shared channel | |
| KR20130083391A (en) | Method and system for transmitting channal state information in wireless communication systems | |
| CN101958777A (en) | Processing method and device for sending correct/error response messages | |
| CN101924624A (en) | Method and terminal for sending correct and wrong response message on physic uplink control channel | |
| CN102238624A (en) | Method for obtaining uplink data receiving condition | |
| CN102469599B (en) | Channel resource determination method of ACK/NACK feedback information and equipment | |
| CN102077499B (en) | Method and equipment for feeding back the Scheduling Request (SR) information and ack/nack information or feeding back a number of sr information | |
| CN102611540A (en) | Method for feeding back ACK/NACK (acknowledgement character/negative acknowledgement) information | |
| CN102123018A (en) | Method for feeding back receiving state in hybrid automatic retransmitting request |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |