CN109845362A - The method and apparatus for determining reception state - Google Patents
The method and apparatus for determining reception state Download PDFInfo
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- CN109845362A CN109845362A CN201680090102.4A CN201680090102A CN109845362A CN 109845362 A CN109845362 A CN 109845362A CN 201680090102 A CN201680090102 A CN 201680090102A CN 109845362 A CN109845362 A CN 109845362A
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Abstract
The embodiment of the present invention provides a kind of method and device of determining reception state, is related to the communications field, this method comprises: base station sends the first data to terminal using the first code word, and sends the second data to the terminal using the second code word.Base station receives feedback information from terminal again.Further, base station determines the first feedback and the second feedback according to above-mentioned feedback information, wherein the first feedback is used to indicate the terminal to the reception state of first data, the second feedback is used to indicate the terminal to the reception state of second data.When above-mentioned first feedback indicates single reception state, and when the non-single reception state of above-mentioned second feedback instruction, base station determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction.A kind of method and apparatus of determining reception state provided in an embodiment of the present invention, can effectively improve the data transmission efficiency of communication system.
Description
The present embodiments relate to the communications fields, more particularly to the method and apparatus for determining reception state.
Wireless communication system is the time-varying of reduction channel and the influence that multipath fading transmits signal, proposes hybrid automatic repeat-request (Hybrid Automatic Repeat Request, HARQ) technology.HARQ technology is technology made of combining automatic repeat request (Automatic Repeat Request, ARQ) and forward error correction coding (Forward Error Correction, FEC).The technology is one of the key technology in existing communication system.
Wireless communication system is based on HARQ transmission data, terminal does HARQ feedback to base station according to data receiver situation, including three kinds of HARQ feedback states: confirmation (Acknowledgement, ACK), deny (Negative Acknowledgement, NACK) or noncontinuity sends (Discontinuous Transmission, DTX).Such as: in downlink transfer, base station passes through Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) to terminal transmission descending scheduling authorization, terminal passes through Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH the downlink data of base station transmission) is received, terminal passes through Physical Uplink Control Channel (Physical Uplink Control Channel according to the reception condition of downlink data, ) or Physical Uplink Shared Channel (Physical Uplink Shared Channel PUCCH, PUSCH) to base station feedback downlink data Reception state (ACK/NACK/DTX), further data transmission and processing is done according to the feedback in base station.
Currently, eating dishes without rice or wine to consume to reduce HARQ feedback, NACK and DTX two states are merged into a kind of fuzzy NACK_DTX state, and in this state, carries out data re-transmission according to DTX feedback states, reduce the data transmission efficiency of system.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and apparatus of determining reception state, to improve the data transmission efficiency of system.
In a first aspect, providing a kind of method of determining reception state, comprising:
Base station sends the first data to terminal using the first code word, and sends the second data to terminal using the second code word.
Base station receives feedback information from terminal.
Base station determines that the first feedback and the second feedback, the first feedback are used to indicate terminal to the reception state of the first data according to feedback information, and the second feedback is used to indicate terminal to the reception state of the second data.
When the first feedback indicates single reception state, and when the non-single reception state of the second feedback instruction, base station determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction.
Second aspect provides a kind of device of determining reception state, base station is used for, including the unit or means (means) for executing each step of the above first aspect.
The third aspect provides a kind of device of determining reception state, is used for base station, including processor and memory, memory is for storing program, and processor calls the program of memory storage, to execute the method provided in first aspect present invention.
Fourth aspect provides a kind of device of determining reception state, is used for base station, at least one processing element or chip including the method for executing the above first aspect.
5th aspect, provides a kind of program, method of the program when being executed by processor for executing the above first aspect.
6th aspect, provides a kind of computer readable storage medium, the program including the 5th aspect.
It can be seen that, in the above various aspects, it can be in the case where dicode word, be conducive to defining for reception state according to the reception state of the corresponding feedback of the first code word to further clarify the reception state of the corresponding feedback of the second code word, after reception state is clear, data further can be transmitted using the processing mode adapted to the reception state, in this way, improving the data transmission efficiency of system.
In the above various aspects, single reception state includes confirmation ACK or denies NACK or discontinuous transmission DTX, non-single reception state include deny-discontinuous transmission NACK_DTX, NACK_DTX be used to indicate the reception state of NACK or DTX.
In the above various aspects, when the reception state of the first feedback instruction is ACK or NACK, and the reception state of the second feedback instruction is NACK_DTX, determine that the reception state of the second feedback instruction is NACK.
In the above various aspects, following steps are can also be performed in base station: base station retransmits the second data using the second code word, wherein when the reception state for determining the instruction of the second feedback is NACK, the second data of re-transmission are using the redundant version number updated.Correspondingly, base station further includes the unit or means for executing the step.
In the prior art, the reception state that base station determines is NACK_DTX, and then the re-transmission of the second data is carried out in the way of DTX, i.e., does not update redundancy versions, the second data of re-transmission are using the redundant version number not updated.Terminal in this way can abandon all information just passed in the scheduling for receiving re-transmission completely, and the data for only relying upon re-transmission completely are demodulated, and the performance of demodulation has certain decline with respect to NACK re-transmission.
And in above scheme, specify that reception state is NACK, then the second data can be retransmitted using the redundant version number updated, terminal is in the scheduling for receiving re-transmission in this way, it can will retransmit the data received and just pass the data received before, demodulation is merged, so that the probability correctly demodulated retransmitted is promoted, and then improves the data transmission efficiency of system.
To describe the technical solutions in the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of wireless communication system provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow diagram of determining reception state provided in an embodiment of the present invention；
Fig. 3 is a kind of method schematic diagram of determining reception state provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of the device 400 of determining reception state provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
1), terminal, also referred to as user equipment (User Equipment, UE), are a kind of equipment for providing a user voice and/or data connectivity, for example, handheld device, mobile unit etc. with wireless connecting function.Common terminal for example, mobile phone, tablet computer, laptop, palm PC, mobile internet device (mobile internet device, MID), wearable device, such as smartwatch, Intelligent bracelet, pedometer etc..
2), base station, also known as wireless access network (Radio Access Network, RAN) equipment is a kind of equipment that terminal is linked into wireless network, including but not limited to: evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB is (for example, Home evolved
NodeB or Home Node B, HNB), Base Band Unit (BaseBand Unit, BBU).In addition, it can include Wifi access point (Access Point, AP) etc..
3), " multiple " refer to two or more."and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
More than, the part term in the application is explained, be convenient for those skilled in the art understand that.
Referring to FIG. 1, it is a kind of schematic diagram of wireless communication system provided in an embodiment of the present invention.As shown in Figure 1, the communication system includes base station 110, terminal 120.Two cell common services of cell1 and cell2 of base station 110 shown in Fig. 1 correspond to two member carriers (Component Carrier, CC) in carrier aggregation technology in terminal 120, cell1 and cell2.It is herein two CC to condense together to support bigger transmission bandwidth with the purpose of carrier aggregation technology.It should be noted that cell1 and cell2 shown in Fig. 1 belong to base station 110, two serving cells (CC) of carrier wave polymerization also may belong to different base stations, herein only example.
Please continue to refer to Fig. 1, terminal 120 establishes wireless heterogeneous networks (Radio Resource Controller for the first time, when RRC) connecting, the serving cell of configuration is cell1 shown in FIG. 1, that is the cell of cell1 progress random access, then cell1 is main serving cell (Primary Serving Cell, PCell).Consider that other serving cells that terminal 120 configures, cell2 as shown in figure 1, then cell2 is known as auxiliary serving cell (Secondary Serving Cell, SCell) according further to load, otherwise demand.The terminal of carrier wave polymerization is supported to connect a main serving cell for one, the index of main plot is 0, the index of Scell is by wireless heterogeneous networks (Radio Resource Controller, RRC) signal deployment, such as, 1 to 4 auxiliary serving cell can be configured, naturally it is also possible to which configuration is more, and this is not restricted.
Further, the carrier units of two codeword transmission data of a subframe, referred to as dicode word carrier units, i.e. dicode word serving cell are utilized.Wherein one code word of physical layer corresponds to a transmission block (Transport Block, TB) for transport layer.Code word, transmission block be it is well known within the skill of those ordinarily skilled, details are not described herein again.
In long term evolution (Long Term Evolution, LTE) carrier aggregation system, under 2CC (two CC polymerizations) scene, HARQ feedback is related with the TB number of terminal transmission, please refers to table 1, and the number of TB determines the value of parameter A.If Pcell and Scell transmit a TB, A=2.If Pcell and Scell 2 TB of one of transmission, one TB of another transmission, then A=3 corresponds to the serving cell 1 of table 1 wherein transmitting the cell of 2 TB, either PCell or SCell,
The cell of 1 TB, either PCell or SCell are wherein transmitted, the serving cell 2 in table 1 is corresponded to.If two serving cells all transmit 2 TB, A=4.
Table 1
In LTE communication system, according to the information category for including in control signaling, PUCCH supports that different-format carries out HARQ feedback in 7, is shown in table with HARQ-ACK.Such as, in frequency division duplex (Frequency Division Duplex, FDD) under the scene of 2CC, i.e. under FDD 2CC scene, terminal is configured as with channel selection (Channel Selection, CS PUCCH format 1b) carries out HARQ_ACK feedback, and terminal selects a PUCCH resource (i.e. from A PUCCH resourceWherein 0≤j≤A-1) transmission b (0), the feedback information of (1) two bit of b.
Illustrate by taking A=3 as an example, for example, Pcell transmits a code word, Scell transmits two code words, please refers to table 2.If terminal is properly received the TB of the PDSCH on PCell, the TB0 of the PDSCH on SCell is properly received, TB1 garbled-reception, then TB corresponding HARQ feedback of the terminal in PCell, i.e. HARQ-ACK (2), are ACK；In the corresponding HARQ feedback of the TB0 of SCell, i.e. HARQ-ACK (0) is ACK；In the corresponding HARQ feedback of the TB1 of SCell, i.e. HARQ-ACK (1) is NACK_DTX.Terminal according to table 2 index for 1 PUCCH () resource on to base station feedback (b (0), b (1))=(1,0).For another example, if the terminal TB that receives the PDSCH on PCell is correct, TB0 and TB1 all garbled-receptions of the PDSCH on SCell, then TB corresponding HARQ feedback of the terminal in PCell, i.e. HARQ-ACK (2), are ACK；In the corresponding HARQ feedback of the TB0 of SCell, i.e. HARQ-ACK (0) is NACK_DTX；In the corresponding HARQ feedback of the TB1 of SCell, i.e. HARQ-ACK (1) is NACK_DTX.Terminal according to table 2, index for 2 PUCCH () resource on to base station feedback (b (0), b (1))=(1,1).
Table 2
Base station receives (b (0), b (1)) value of terminal feedback, and further according to table 2, demodulating the feedback states on PUCCH channel resource is ACK or NACK_DTX.Such as, when base station is (b (0) in the resource of 1 PUCCH in index, b (1)) value be (1,0), according to table 2 it is known that HARQ-ACK (0) feeding back ACK, HARQ-ACK (1) feeding back ACK, HARQ-ACK (2) feeds back NACK_DTX, know that the TB on Serving Cell2 is properly received, the TB0 reception on Serving Cell1 is wrong, and TB2 is properly received.No matter it is properly received or garbled-reception, terminal all preserves the data received.
NACK and DTX two states are merged into a kind of non-single reception state NACK_DTX state due to feeding back above, NACK and DTX two states cannot be distinguished, system is retransmitted all in accordance with DTX feedback states, i.e., does not update redundancy versions, the data of overlapping are using the redundant version number not updated.Terminal in this way can abandon all information just passed in the scheduling for receiving re-transmission completely, and the data for only relying upon re-transmission completely are demodulated, and the performance of demodulation has certain decline with respect to NACK re-transmission, therefore efficiency of transmission is declined.
In view of problem above, in order to adapt to the higher and higher efficiency of transmission of communication system, a kind of method and apparatus of determining reception state provided by the embodiments of the present application.The same PDCCH channel information is shared using two code words of dicode word CC, if one of code word is fed back to single reception state, such as confirm ACK or denies NACK, show that the channel information of the corresponding PDCCH of the CC has demodulated to come, so show that the data of another code word of the CC carried also are received by terminal, therefore can be from
NACK state is distinguished in the non-single reception state NACK_DTX state in part.Communication system carries out subsequent data transmission and processing according to NACK feedback states, improves the data transmission efficiency of system.
Wherein, above-mentioned single reception state refers to a kind of single reception state, including confirms ACK or deny NACK or discontinuous transmission DTX.Above-mentioned non-single reception state refers to mixing or merging at least two reception states, including NACK_DTX.The definition of the single reception state and non-single reception state is suitable for full text.
Referring to FIG. 2, it is a kind of method flow diagram of determining reception state provided by the invention, method includes the following steps:
S210: base station sends the first data to terminal using the first code word, and sends the second data to terminal using the second code word.
S220: base station receives feedback information from terminal.
S230: base station determines that the first feedback and the second feedback, the first feedback are used to indicate terminal to the reception state of the first data according to feedback information, and the second feedback is used to indicate terminal to the reception state of the second data；
S240: when the first feedback indicates single reception state, and when the non-single reception state of the second feedback instruction, base station determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction.
By above method step, can in the case where dicode word, according to the reception state of the feedback of the data sent using the first code word, come further clarify the data sent using the second code word feedback reception state, be conducive to defining for reception state.After reception state is clear, data further can be transmitted using the processing mode adapted to the reception state, in this way, improving the data transmission efficiency of system.
Fig. 3 is a kind of method schematic diagram of determining reception state provided in an embodiment of the present invention, and in conjunction with table 2, as A=3, Fig. 3 is the signal of the reception state confirmation of two code words of double codewords among cells Serving Cell1.In the subframe marked as m, base station sends the first data, the second data to terminal on the corresponding TB0 of the first code word, the corresponding TB1 of the second code word respectively.In the subframe marked as m+k, terminal does HARQ feedback to base station, base station is (b (0) in the resource of 1 PUCCH in index, b (1)) value be (1,0), the corresponding HARQ feedback of TB on Serving Cell2 according to table 2, i.e. HARQ-ACK (2) are ACK, the corresponding HARQ feedback of the TB0 of Serving Cell1, that is HARQ-ACK (0) is ACK, i.e., first is fed back to ACK, the corresponding HARQ feedback of the TB1 of Serving Cell1, that is HARQ-ACK (1) is NACK_DTX, i.e., second is fed back to NACK_DTX.Base station shares the same PDCCH channel information according to two code words of the same serving cell, therefore corresponding first feedback of the TB0 of Serving Cell1 is confirmation ACK, can determine that the corresponding second feedback NACK_DTX state of the TB1 of Serving Cell1 is to deny NACK state.It should be noted that the division of code word belongs to space
The scope of division does not have corresponding relationship with time slot.The first data and the second data of two code words carrying of Serving Cell1 are only illustrated in Fig. 3, two time slots of a not corresponding subframe.
Further, base station is using NACK as the HARQ_ACK feedback states of the TB1 of Serving Cell1.With continued reference to FIG. 3, base station retransmits second data using the redundant version number updated to terminal in the subframe marked as m+k+n.Wherein m, k, n are any positive integer.
As it can be seen that the present embodiment second feedback NACK_DTX on the TB1 of Serving Cell1 is ultimately determined to NACK feedback states, then base station retransmits the second data for having updated redundant version number, to improve the data transmission efficiency of system.
If, the first feedback of the TB0 of Serving Cell1 is non-single reception state, such as NACK_DTX, then the reception state of the second feedback of the TB1 of Serving Cell1 is still determined as NACK_DTX or is determined as DTX state, then system carries out follow-up data retransmission process according to the feedback states of DTX.At this point, base station does not update redundant version number, i.e., the redundant version number that second data that base station is retransmitted to terminal use is identical as the redundant version number that second data use is transmitted before.
Only partial service cell is dicode word serving cell above, i.e., method that each dicode word serving cell be respectively all suitable for provided by the invention determining reception state equally applicable when serving cell is all dicode word serving cell.
In another embodiment, as shown in table 3, as A=4, i.e., two serving cells (PCell and SCell) are all dicode word serving cells.Please refer to table 3, terminal is in two code words of the PCell/SCell to progress base station HARQ feedback, if that the one of codeword feedback of PCell/SCell is confirmation ACK or NACK, it can be confirmed that the NACK_DTX state of the feedback of another code word of the PCell/SCell is NACK state.To filter out part DTX state, the efficiency of transmission of system equally can be improved, detailed process repeats no more.
Table 3
Further; regardless of cell portion is dicode word serving cell; or whole cells are dicode word serving cells; as long as the HARQ feedback state using the HARQ feedback state confirmation of one of code word of dicode word serving cell another code word belongs to protection scope of the present invention, herein without limitation to the number of dicode word serving cell.
In conjunction with the process described above, as shown in figure 4, it is a kind of device 400 of determining reception state provided by the invention, which is located at base station, including transmission unit 410, receiving unit 420 and determination unit 430.
Transmission unit 410: for sending the first data to terminal using the first code word, and the second data are sent to terminal using the second code word.
Receiving unit 420, for receiving feedback information from terminal.
Determination unit 430, for determining that the first feedback and the second feedback, the first feedback are used to indicate terminal to the reception state of the first data according to feedback information, the second feedback is used to indicate terminal to the reception state of the second data.
Determination unit 430 is also used to, and when the first feedback indicates single reception state, and when the non-single reception state of the second feedback instruction, according to the reception state of the first feedback instruction, determines the reception state of the second feedback instruction.
Optionally, device 400 can also include retransmission unit 440, for retransmitting the second data using the second code word.
Above-mentioned single reception state includes confirmation ACK or denies NACK or discontinuous transmission DTX, above-mentioned non-single reception state include deny-discontinuous transmission NACK_DTX, the NACK_DTX be used to indicate the reception state of NACK or DTX.
When the reception state of the first feedback instruction is ACK or NACK, and the reception state of the second feedback instruction is NACK_DTX, determination unit 430 determines that the reception state of the second feedback instruction is NACK.
Further, when the reception state for determining the instruction of the second feedback is NACK, the second data that retransmission unit 440 retransmits use updated redundant version number.
In addition, when the reception state for determining the instruction of the second feedback is NACK_DTX or DTX, the redundant version number that the second data that retransmission unit 440 retransmits use is identical as the redundant version number for transmitting the use of the second data before.
Pass through the description of the device of above determination reception state, it should be understood that the division of each unit of apparatus above is only a kind of division of logic function, can be completely or partially integrated on a physical entity in actual implementation, can also be physically separate.And these units in such a way that software is by being called all to realize；It can also all realize in the form of hardware；It can realize that part is realized in the form of hardware by way of software is called with unit.Such as, determination unit 430 can be the processing unit individually set up, and be also possible to realize in some chip for being integrated in base station, furthermore, it can also be stored in the form of program code in the memory of base station, called by some processing element of base station and execute the function of above each unit.The realization of other units is similar therewith.Furthermore these units completely or partially can integrate together, can also independently realize.Processing element described here can be a kind of integrated circuit, the processing capacity with signal.During realization, each step or above each unit of the above method can be completed by the integrated logic circuit of the hardware in processor elements or the instruction of software form.
For example, the above unit can be arranged to implement the integrated electricity of one or more of above method
Road, such as: one or more specific integrated circuit (Application Specific Integrated Circuit, ASIC), or, one or more microprocessors (digital singnal processor, DSP), or, one or more field programmable gate array (Field Programmable Gate Array, FPGA) etc..For another example, when some above unit is realized by way of processing element scheduler program code, the processing element can be general processor, for example, central processing unit (Central Processing Unit, CPU) or it is other can be with the processor of caller code.For another example, these units can integrate together, realize in the form of system on chip (system-on-a-chip, SOC).
The realization of above each unit specifically in a base station, refers to Fig. 5, and Fig. 5 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention.As shown in figure 5, the base station includes: processor 510, memory 520, R-T unit 530.R-T unit 530 can be connect with antenna.In the upstream direction, R-T unit 530 receives the information that terminal is sent by antenna, and sends information to processor 510 and handled.In the downstream direction, processor 510 handles the data of terminal, and fills 530 by transmitting-receiving and be sent to terminal.
The memory 520 is used to store the program code for realizing above method embodiment or apparatus above embodiment each unit, and processor 510 calls the program code, the operation of above method embodiment is executed, to realize each unit shown in Fig. 4.
It is realized alternatively, some or all of above each unit can also be embedded on some chip of the terminal by way of integrated circuit.And they can be implemented separately, and also can integrate together.I.e. the above unit may be configured to implement above method one or more integrated circuits, such as: one or more specific integrated circuit (Application Specific Integrated Circuit, ASIC), or, one or more microprocessors (digital singnal processor, DSP), or, one or more field programmable gate array (Field Programmable Gate Array, FPGA) etc..
By the description of above embodiment, it is apparent to those skilled in the art that the present invention can be realized with hardware realization or firmware realization or their combination mode.When implemented in software, above-mentioned function can be stored in computer-readable medium or as on computer-readable medium one or more instructions or code transmit.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to any medium of another place transmission computer program.Storage medium can be any usable medium that computer can access.As example but be not limited to: computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or storing have instruction
Or data structure form desired program code and can be by any other medium of computer access.Furthermore.Any connection appropriate can become computer-readable medium.Such as, if software is to be transmitted using the wireless technology of coaxial cable, optical fiber cable, twisted pair, Digital Subscriber Line (DSL) either such as infrared ray, radio and microwave etc from website, server or other remote sources, the wireless technology of coaxial cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless and microwave etc includes in the fixing of affiliated medium.
In short, being not intended to limit the scope of the present invention the foregoing is merely the preferred embodiment of technical solution of the present invention.It is all within principle of the invention, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
- A kind of method of determining reception state, which is characterized in that the described method includes:Base station sends the first data to terminal using the first code word, and sends the second data to the terminal using the second code word；The base station receives feedback information from the terminal；The base station determines that the first feedback and the second feedback, first feedback are used to indicate the terminal to the reception state of first data according to the feedback information, and second feedback is used to indicate the terminal to the reception state of second data；When first feedback indicates single reception state, and when the non-single reception state of the second feedback instruction, the base station determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction.
- According to the method for claim 1, it is characterized in that, the single reception state includes confirmation ACK or denies NACK or discontinuous transmission DTX, the non-single reception state include deny-discontinuous transmission NACK_DTX, the NACK_DTX be used to indicate the reception state of NACK or DTX.
- According to the method described in claim 2, it is characterized in that, the base station determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction, comprising:When the reception state of the first feedback instruction is ACK or NACK, and the reception state of the second feedback instruction is NACK_DTX, determine that the reception state of the second feedback instruction is NACK.
- According to the method in claim 2 or 3, which is characterized in that the method also includes:The base station retransmits second data using second code word, whereinWhen the reception state for determining the second feedback instruction is NACK, second data of re-transmission are using the redundant version number updated.
- A kind of device of determining reception state, which is characterized in that described device includes:Transmission unit for sending the first data to terminal using the first code word, and sends the second data to the terminal using the second code word；Receiving unit, for receiving feedback information from the terminal；Determination unit, for determining that the first feedback and the second feedback, first feedback are used to indicate the terminal to the reception state of first data according to the feedback information, second feedback is used to indicate the terminal to the reception state of second data；The determination unit is also used to, and when first feedback indicates single reception state, and when the non-single reception state of the second feedback instruction, according to the reception state of the first feedback instruction, determines the reception state of the second feedback instruction.
- Device according to claim 5, it is characterized in that, the single reception state includes confirmation ACK or denies NACK or discontinuous transmission DTX, the non-single reception state include deny-discontinuous transmission NACK_DTX, the NACK_DTX be used to indicate the reception state of NACK or DTX.
- Device according to claim 5, which is characterized in that the determination unit determines the reception state of the second feedback instruction according to the reception state of the first feedback instruction, comprising:When the reception state of the first feedback instruction is ACK or NACK, and the reception state of the second feedback instruction is NACK_DTX, determine that the reception state of the second feedback instruction is NACK.
- Device according to claim 6 or 7, which is characterized in that described device further include:Retransmission unit, for retransmitting second data using second code word, wherein when the reception state for determining the second feedback instruction is NACK, second data of re-transmission are using the redundant version number updated.
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| CN103069736A (en) * | 2010-09-16 | 2013-04-24 | 华为技术有限公司 | Feedback information relating to a mobile communications system using carrier aggregation |
| WO2013141790A2 (en) * | 2012-03-19 | 2013-09-26 | Telefonaktiebolaget L M Ericsson (Publ) | Methods using harq-ack codebooks for multi-flow communications and related wireless terminals and radio network nodes |
| CN103378935A (en) * | 2012-04-27 | 2013-10-30 | 中兴通讯股份有限公司 | Method for adjusting downlink relevant parameters based on feedback ambiguity |
| CN105765894A (en) * | 2013-11-28 | 2016-07-13 | 瑞典爱立信有限公司 | Methods, apparatuses and user equipment for hybrid automatic repeat request transmission |
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| CN102098151B (en) * | 2010-12-28 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of sending method of correct/error response message and user terminal |
| US20160218835A1 (en) * | 2015-01-26 | 2016-07-28 | Electronics And Telecommunications Research Institute | Method and apparatus for constituting feedback signal for harq |
| CN105991171B (en) * | 2015-02-15 | 2019-05-10 | 电信科学技术研究院 | A kind of three dimensional channel status information determines method and device |
| JP6086142B2 (en) * | 2015-10-14 | 2017-03-01 | 富士通株式会社 | Communications system |
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| CN103069736A (en) * | 2010-09-16 | 2013-04-24 | 华为技术有限公司 | Feedback information relating to a mobile communications system using carrier aggregation |
| WO2013141790A2 (en) * | 2012-03-19 | 2013-09-26 | Telefonaktiebolaget L M Ericsson (Publ) | Methods using harq-ack codebooks for multi-flow communications and related wireless terminals and radio network nodes |
| CN103378935A (en) * | 2012-04-27 | 2013-10-30 | 中兴通讯股份有限公司 | Method for adjusting downlink relevant parameters based on feedback ambiguity |
| CN105765894A (en) * | 2013-11-28 | 2016-07-13 | 瑞典爱立信有限公司 | Methods, apparatuses and user equipment for hybrid automatic repeat request transmission |
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