WO2012171413A1 - Procédé et système de traitement de rétroaction harq-ack - Google Patents

Procédé et système de traitement de rétroaction harq-ack Download PDF

Info

Publication number
WO2012171413A1
WO2012171413A1 PCT/CN2012/074299 CN2012074299W WO2012171413A1 WO 2012171413 A1 WO2012171413 A1 WO 2012171413A1 CN 2012074299 W CN2012074299 W CN 2012074299W WO 2012171413 A1 WO2012171413 A1 WO 2012171413A1
Authority
WO
WIPO (PCT)
Prior art keywords
harq
ack
bit sequence
determines
serving cell
Prior art date
Application number
PCT/CN2012/074299
Other languages
English (en)
Chinese (zh)
Inventor
戴博
梁春丽
张禹强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012171413A1 publication Critical patent/WO2012171413A1/fr

Links

Classifications

    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular to a feedback processing method and system for hybrid automatic retransmission response message (HARQ Acknowledgement, abbreviated as HARQ-ACK).
  • HARQ Acknowledgement abbreviated as HARQ-ACK.
  • HARQ Acknowledgement abbreviated as HARQ-ACK.
  • HARQ Acknowledgement abbreviated as HARQ-ACK.
  • HARQ Acknowledgement abbreviated as HARQ-ACK.
  • HARQ Acknowledgement In an Orthogonal Frequency Division Multiplex (OFDM) system, a HARQ Acknowledgement (HARQ Acknowledgement, abbreviated as HARQ-ACK) is used to feed back a base station to determine whether retransmission is needed.
  • HARQ-ACK response message to the base station is ACK, it indicates that the receiving end correctly received the information; when the HARQ-ACK response message fed back to the base station is NACK, it indicates that the receiving end receives the error, and the base station needs to perform retransmission.
  • the HARQ-ACK response message can be on the Physical Uplink Control Channel (PUCCH). It can be sent separately or together with data on the Physical Uplink Shared Channel (PUSCH).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • TDD Time Division Duplex
  • the uplink and downlink subframes are not one-to-one correspondence, that is, the ACK/NACK response messages corresponding to multiple downlink subframes need to be in one uplink subframe.
  • the PUCCH/PUSCH channel is sent, where the downlink subframe set corresponding to the uplink subframe constitutes a binding window.
  • two HARQ-ACK feedback modes are defined: One is HARQ-ACK bundling.
  • the basic idea of the feedback mode is that it needs to be in the uplink subframe.
  • the HARQ-ACK message of the codeword stream corresponding to each downlink sub-frame is logically ANDed. If the PDSCH transmission of one downlink sub-frame contains two codeword streams, the user equipment (User Equipment, UE for short) needs feedback. The sub-frame logic and the operation of the 2-bit HARQ-ACK response message corresponding to each codeword stream. If the PDSCH transmission of each sub-frame has only one codeword stream, the UE has to feedback the sub-frame logic and operation.
  • the UE when the UE When there is no PUSCH to transmit in the current subframe, the UE will transmit the 1/2-bit HARQ-ACK response message on the PUCCH in the format la/lb; and when the UE has PUSCH transmission in the current subframe, the UE will The 1/2 bit information is multiplexed with certain channel coding, channel interleaving, and data, and then transmitted on the PUSCH.
  • the other is a HARQ-ACK multiplexing feedback mode. As shown in FIG.
  • the feedback mode needs to feed back one HARQ-ACK response message for each downlink subframe, and multiple subframes need to feed back multiple A HARQ-ACK response message
  • a PDSCH transmission of a downlink subframe includes two codeword streams
  • logically AND operation is performed on the HARQ-ACK response message of each codeword stream
  • each downlink subframe corresponds to only one HARQ-ACK response message.
  • the UE does not transmit a PUSCH in the current subframe, the UE will transmit the multiple HARQ-ACK response messages on the PUCCH by using format lb with channel selection.
  • the core idea of the method is to utilize Different PUCCH channels and different modulation symbols on the channel represent different HARQ ACK response messages.
  • the method enables a portable HARQ-ACK response message to be up to 4 bits by channel selection in combination with the control channel format lb.
  • LTE defines different subframe configurations, that is, when the uplink and downlink subframe configurations are 1:2/3/4, the state combination of the ACK/NACK response message and the selected PUCCH channel and the 2-bit information carried on the channel b (0) Mapping table between b(l) (referred to as mapping table).
  • the UE When the UE has a PUSCH to transmit in the current subframe, the UE further performs transmission of the HARQ-ACK response message according to whether the current PUSCH has corresponding PDCCH scheduling information: when the PUSCH has a corresponding PDCCH, the UE according to the downlink corresponding to the PDCCH
  • the downlink allocation indication Downlink Assignment Indicator, DAI for short, and the DAI in the DCI related to the PUSCH is called uplink DAI
  • uplink DAI Downlink Assignment Indicator
  • the size of the bit sequence, and the DAI in the DCI corresponding to the PDSCH (here, the DAI is referred to as the downlink DAI) to determine the position of the HARQ-ACK response message corresponding to the corresponding downlink subframe in the feedback bit sequence; when the PUSCH does not The corresponding PDCCH, the UE determines the size of the bit sequence when the HARQ-ACK response message is sent on the PUSCH according to the current uplink and downlink subframe configuration, and determines the corresponding downlink according to the order relationship corresponding to the uplink subframe and the downlink subframe.
  • the uplink DAI represents the total number of PDSCHs sent in the binding window and the PDCCHs used to indicate semi-persistent Scheduling (SPS) release, and the downlink DAI indicates the accumulation to the current subframe.
  • SPS semi-persistent Scheduling
  • Both the uplink DAI and the downlink DAI are represented by 2 bits, and the corresponding meanings of the corresponding bits and representations are as shown in Table 1. Table 1 Values of the downlink allocation index
  • Whether the UE of TDD adopts HARQ-ACK bundling or HARQ-ACK mulitplexing to feed back HARQ-ACK is configured by higher layer signaling.
  • LTE-A Long Term Evolution Advanced
  • Rel the evolution standard of LTE
  • the system needs to support larger system bandwidth (up to 100MHz) and requires backward compatibility with existing LTE standards. Based on the existing LTE system, the bandwidth of the LTE system can be combined to obtain a larger bandwidth.
  • This technology is called Carrier Aggregation (CA) technology, which can improve advanced international mobile communication.
  • CA Carrier Aggregation
  • the spectrum utilization of the system and the mitigation of spectrum resources are scarce, thereby optimizing the utilization of spectrum resources.
  • a carrier that performs aggregation is called a component carrier (CC), and is also called a serving cell.
  • CC component carrier
  • PCC/PCell primary component carrier/cell
  • SCC/SCell secondary component carrier/cell
  • the system includes at least one primary serving cell and a secondary serving cell, wherein the primary serving cell is always in an active state.
  • the UE When the LTE-A adopts the carrier aggregation technology, if the base station configures multiple downlink serving cells for the UE, the UE needs to feed back the HARQ-ACK response messages of the corresponding codeword streams of the multiple downlink serving cells.
  • LTE-A when the HARQ-ACK response message is sent on the physical uplink control channel, two feedback modes are defined: using PUCCH format lb with channel selection and extending orthogonal according to discrete Fourier transform. Frequency division multiplexing (DFT-s-OFDM) feedback.
  • DFT-s-OFDM Frequency division multiplexing
  • PUCCH format 3 PUCCH format 3
  • the UE needs to determine the HARQ-ACK bit sequence transmitted on the PUSCH according to the configured number of aggregated serving cells, the configured transmission mode of the serving cell, and the configured uplink-downlink subframe ratio (for the TDD system).
  • the main purpose of determining the size of the feedback HARQ-ACK bit sequence is to allow the UE to perform HARQ-ACK feedback as much as possible according to the actual scheduling situation of the base station (rather than configuration) to reduce the number of feedback bits of the HARQ-ACK.
  • the actual scheduling is smaller than the configuration
  • RE resource Element
  • the number of REs occupied by the HARQ-ACK on the PUSCH can be calculated by the following formula:
  • O is the number of HARQ-ACK bits
  • s P . useH is the number of PUSCH bandwidth subcarriers scheduled by the subframe in which the transport block is located
  • N H — imtial is the number of subframe symbols of the initial transmission PUSCH on the corresponding transmission subframe
  • ⁇ ⁇ is the power control parameter.
  • the number of REs occupied by the HARQ-ACK on the PUSCH can be calculated by the following formula:
  • the superscripts (1) and (2) in the above formula represent the first and second transport blocks, respectively.
  • the binding window size is 1, the value of the HARQ-ACK bit sequence sent by the UE is larger than that actually required by the base station. For example, if the UE is configured with two serving cells and the two serving cells are configured as the downlink transmission mode of the dual codeword stream, the UE will need to feed back the HARQ-ACK on the PUSCH according to the related art.
  • a 4-bit HARQ-ACK is transmitted, but in fact, at some time, e B may only schedule a certain serving cell. At this time, the eNB only needs 2-bit HARQ-ACK feedback, but the UE still follows 4-bit HARQ-ACK.
  • the feedback is performed, that is, the HARQ-ACK fed back by the UE has redundant information. Therefore, in order to more accurately determine the size of the HARQ-ACK bit sequence to reduce the impact on the PUSCH when the HARQ-ACK is transmitted on the PUSCH, for the configuration with the binding window of 1, the improved design and the HARQ-ACK bit sequence The method of determining the size is necessary.
  • the present invention provides a feedback processing scheme for a HARQ-ACK, to at least solve the case where the binding window size is 1 in the related art, and the size of the HARQ-ACK bit sequence transmitted by the UE is larger than that actually required by the base station. problem.
  • a feedback processing method for a HARQ-ACK including: when a UE is configured with multiple serving cells, the uplink and downlink subframes are configured to be 1 or 6, and the binding window size is 1, the base station Transmitting the DCI format 0 and/or 4 to the UE, where the two-bit downlink allocation indication DCI information in the DCI format 0 and/or 4 is used to indicate the downlink scheduling situation of the current subframe; the UE determines the feedback on the PUSCH according to the DAI information.
  • the HARQ-ACK bit sequence and/or the number of REs occupied by the HARQ-ACK bit sequence are configured with multiple serving cells, the uplink and downlink subframes are configured to be 1 or 6, and the binding window size is 1, the base station Transmitting the DCI format 0 and/or 4 to the UE, where the two-bit downlink allocation indication DCI information in the DCI format 0 and/or 4 is used to indicate the downlink scheduling situation of the current subframe; the UE determines the feedback on
  • the UE determines the HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information.
  • the two downlink serving cells include a primary serving cell and a secondary serving cell.
  • the UE determines the HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information.
  • the UE does not transmit a HARQ-ACK response message on the PUSCH, and the UE determines that the size and/or the number of REs of the HARQ-ACK bit sequence is zero.
  • the configured HARQ-ACK feedback mode is channel selection and the transmission mode of the primary serving cell in the configured 2 downlink serving cells is a dual codeword streaming mode, the transmission of the secondary serving cell in the 2 downlink serving cells
  • the UE determines the HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information and/or determines the number of REs occupied by the HARQ-ACK bit sequence, including: when the DAI information is A, the UE determines The size of the HARQ-ACK bit sequence is 3, and the determined bit sequence is HARQ-ACK response message corresponding to the primary serving cell corresponding to ":, where 0 ⁇ corresponds to 0 ⁇ , and 0f K corresponds to the HARQ-ACK response
  • the UE does not send a HARQ-ACK response message on the PUSCH, and the UE determines that the size of the HARQ-ACK bit sequence and/or the number of REs is zero.
  • the configured HARQ-ACK feedback mode is channel selection and the transmission mode of the primary serving cell in the configured 2 downlink serving cells is a single codeword stream transmission mode, the transmission of the secondary serving cell in the 2 downlink serving cells
  • the UE determines the HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information and/or determines the number of REs occupied by the HARQ-ACK bit sequence, including: when the DAI information is A, the UE determines The size of the HARQ-ACK bit sequence is 3, and the bit sequence is determined to be ":, where 0 corresponds to the HARQ-ACK response message of the primary serving cell, and 0 corresponds to the HARQ-ACK response message of the secondary serving cell
  • determining, by the UE according to the DAI information, the HARQ-ACK bit sequence fed back on the PUSCH and/or determining the number of REs occupied by the HARQ-ACK bit sequence includes: determining by the UE The HARQ-ACK bit sequence is a bit sequence of the HARQ-ACK response message corresponding to the corresponding codeword stream of the configured downlink serving cell according to the downlink serving cell index, and/or the UE determines 0 according to the downlink allocation index, and uses 0 calculates the number of REs.
  • ff is a value determined according to the DAI information.
  • the DAI information is A
  • ff takes a value of 1 or 5
  • the DAI information is B
  • ff takes a value of 2
  • the DAI information is C
  • ff takes a value of 3
  • the DAI information is D
  • ff takes a value of 4 or 0.
  • the DAI information is D
  • A, B, C, and D are one of 2-bit binary numbers, and A, B, C, and PD are not equal to each other.
  • a feedback processing system for a HARQ-ACK including: a base station, configured to: when a user equipment UE is configured with multiple serving cells, the uplink and downlink subframes are configured to be 1 or 6, and the binding is performed.
  • the DCI format 0 and/or 4 are sent to the UE, where the two-bit downlink allocation indication DCI information in the DCI format 0 and/or 4 is used to indicate the downlink scheduling condition of the current subframe; It is set to determine a HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information and/or determine the number of REs occupied by the HARQ-ACK bit sequence.
  • the base station is used to notify the UE of the downlink scheduling situation, and the UE further determines the HARQ-ACK bit sequence fed back on the PUSCH and/or the RE number used by the HARQ-ACK bit sequence determined according to the scheduling situation.
  • FIG. 1 is a schematic diagram of a HARQ-ACK bundling mode according to the related art
  • FIG. 2 is a schematic diagram of a HARQ-ACK multiplexing mode according to the related art
  • FIG. 3 is a feedback of HARQ-ACK according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a UE feeding back HARQ-ACK according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of another UE feeding back HARQ-ACK according to Embodiment 2 of the present invention
  • FIG. 7 is a schematic diagram of another UE feeding back HARQ-ACK according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic diagram of UE feedback HARQ-ACK according to Embodiment 3 of the present invention
  • FIG. 9 is a third embodiment of the present invention.
  • FIG. 10 is a schematic diagram of still another UE feedback HARQ-ACK according to Embodiment 3 of the present invention
  • FIG. 11 is another UE feedback HARQ- according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic diagram of a UE feeding back HARQ-ACK according to Embodiment 4 of the present invention
  • FIG. 13 is a schematic diagram of another UE feeding back HARQ-ACK according to Embodiment 4 of the present invention
  • FIG. 15 is a schematic diagram of still another UE feeding back HARQ-ACK according to Embodiment 4 of the present invention;
  • FIG. 10 is a schematic diagram of still another UE feedback HARQ-ACK according to Embodiment 3 of the present invention
  • FIG. 11 is another UE feedback HARQ- according to Embodiment 3 of
  • FIG. 16 is a schematic diagram of a UE according to Embodiment 5 of the present invention
  • FIG. 17 is a schematic diagram of another UE feedback HARQ-ACK according to Embodiment 5 of the present invention
  • FIG. 18 is a schematic diagram of still another UE feedback HARQ-ACK according to Embodiment 5 of the present invention
  • 19 is another UE feedback HARQ-ACK according to Embodiment 5 of the present invention.
  • FIG. 20 is a schematic diagram of UE feedback HARQ-ACK according to Embodiment 6 of the present invention
  • FIG. 21 is a schematic diagram of UE feedback HARQ-ACK according to Embodiment 7 of the present invention
  • FIG. 22 is a schematic diagram of a UE according to an embodiment of the present invention.
  • FIG. 23 is a flowchart of a feedback processing system of HARQ-ACK according to an embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • Embodiment 1 The embodiment of the present invention discloses a feedback processing method for HARQ-ACK, which can be used in an LTE-A TDD system, and FIG.
  • Step S302 When a UE is configured with multiple serving cells, the uplink and downlink subframes are configured to be 1 or 6, and the binding window size is 1, the base station sends a DCI format 0 and/or to the UE. 4, wherein the two-bit DAI information in the DCI format 0 and/or 4 is used to indicate a downlink scheduling situation of the current subframe; and in step S304, the UE determines a HARQ-ACK bit sequence and/or determines the feedback on the PUSCH according to the DAI information.
  • Step S304 may be implemented in multiple manners, for example, the following manners may be used: Mode 1 When the configured HARQ-ACK feedback mode is channel selection and the configured transmission modes of the two downlink serving cells are dual codeword streams.
  • the size of the -ACK bit sequence and/or the number of REs is zero.
  • Step S304 may include: when the DAI information is A, the UE determines that the size of the HARQ-ACK bit sequence is 3, and determines that the bit sequence is ⁇ and Of, where Of and the corresponding primary serving cell
  • the DAI information is D
  • the UE does not send a HARQ-ACK response message on the PUSCH, and the UE determines that the size and/or the number of HARQ-ACK bit sequences are zero.
  • the step S304 may include: the UE determines that the HARQ-ACK bit sequence is the HARQ-ACK response message corresponding to the corresponding codeword stream of the configured downlink serving cell, according to the downlink serving cell.
  • the index is indexed from low to high level; and/or the UE is determined according to the downlink allocation index and uses the calculated RE number.
  • an appropriate HARQ-ACK bit sequence can be determined according to actual conditions.
  • the DAI information when the DAI information is A, ff takes a value of 1 or 5; when the DAI information is B, ff takes a value of 2; when the DAI information is C, ff takes a value of 3; when the DAI information is D , ff takes a value of 4 or 0.
  • the value obtained by the DAI information can be conveniently obtained.
  • A, B, C, and D are one of binary numbers of 2 bits, and B, C, and D are not equal to each other.
  • the base station transmits one or more DCI formats 0 and/or 4 to the UE on the subframe, the values of the DAI information in the one or more DCI formats are the same.
  • Embodiment 2 to Embodiment 5 relate to a method for transmitting a correct error response message in a time division duplex system using carrier aggregation technology.
  • the embodiment of the present invention is directed to a scenario in which an uplink and downlink subframe is configured to be 1 or 6 in an LTE-TDD system, and when a binding window size is 1, the UE feeds back a HARQ-ACK response message on the PUSCH.
  • the two-bit downlink allocation indication (DAI) information in the downlink control information DCI format 0 and/or 4 sent by the base station to the UE indicates the downlink scheduling of the current subframe, Or, indicating the corresponding HARQ-ACK feedback of the UE, as shown in the following table: Table 3
  • A, B, C and D can be any of '00', '0 ⁇ , ' ⁇ ' ⁇ , and A, B, C and D are different from each other.
  • Embodiment 2 This embodiment is applicable to a case where the downlink transmission modes of the primary serving cell and the secondary serving cell are both dual codeword streaming modes, and in this case, the HARQ-ACK bit sequence and/or feedback on the PUSCH are determined in the following manner. The number of REs occupied by the HARQ-ACK bit sequence. As shown in FIG.
  • the UE determines that the size of the HARQ-ACK bit sequence fed back on the PUSCH is 4, and the bit sequence is 0 CK , O K , O K , and 0.
  • the bit sequence is 0 CK , O K , O K , and 0.
  • the HARQ-ACK bit sequence and/or the HARQ-feedback on the PUSCH are determined in the following manner.
  • the UE determines that the size of the HARQ-ACK bit sequence fed back on the PUSCH is 2, and the bit sequence is 0 and 0, where corresponding to the primary serving cell
  • the two-bit downlink allocation indication information is C
  • the UE determines that the size of the HARQ-ACK bit sequence fed back on the PUSCH is 1, and the bit sequence is ⁇ 3 ⁇ 4 ⁇ , where the HARQ of the secondary serving cell is corresponding.
  • Embodiment 4 This embodiment is applicable to a case where a downlink transmission mode of a primary serving cell is configured as a transmission mode of a dual codeword stream, and a downlink transmission mode of a secondary serving cell is configured as a transmission mode of a single codeword stream, where the method is determined as follows.
  • the two-bit downlink allocation indication information is C
  • the UE determines that the size of the HARQ-ACK bit sequence fed back on the PUSCH is 1, and the bit sequence is ⁇ 3 ⁇ 4 ⁇ , where the HARQ of the secondary serving cell is corresponding.
  • Embodiment 5 This embodiment is applicable to a case where a downlink transmission mode of a primary serving cell is configured as a transmission mode of a single codeword stream, and a downlink transmission mode of a secondary serving cell is configured as a transmission mode of a dual codeword stream, where the method is determined as follows.
  • the UE determines that the size of the HARQ-ACK bit sequence fed back on the PUSCH is 1, and the bit sequence is ⁇ 3 ⁇ 4 ⁇ , where the HARQ corresponding to the primary serving cell - ACK response message;
  • the two-bit downlink allocation indication information is D, the UE does not need to send a HARQ-ACK response message on the PUSCH.
  • Embodiments 6 to 8 are applied to the following scenario: when the HARQ-ACK feedback mode of the UE is configured as the PUCCH format 3, the HARQ-ACK bit sequence fed back by the UE on the PUSCH is the HARQ corresponding to the corresponding codeword stream of the configured downlink serving cell.
  • the ACK response message is a bit sequence in which the downlink serving cell index is connected from low to high.
  • the 0 used by the UE in calculating the number of REs occupied by the HARQ-ACK bit sequence fed back on the PUSCH is determined by the downlink allocation index.
  • A, B, C, and D are any one of 00, 01, 10, and 11, and are different from each other.
  • the received 2-bit downlink allocation indication information is "A”
  • the received 2-bit downlink allocation indication information is "D”
  • the base station configures three serving cells for the UE, where the primary serving cell is configured as a dual codeword stream transmission mode, and the two secondary serving cells are configured as a dual codeword stream transmission mode.
  • the HARQ-ACK bit sequence fed back by the UE on the PUSCH is a bit sequence of the HARQ-ACK response message corresponding to the corresponding codeword stream of the configured downlink serving cell according to the downlink serving cell index from low to high, r
  • the correspondence between the bit sequence and the HARQ-ACK response message on the corresponding codeword stream of the serving cell is as shown in FIG. 20 .
  • Example 7 As shown in FIG. 21, the transmission mode of the configured serving cell and the serving cell is the same as that in Embodiment 6, except that the current scheduling situation is different.
  • the HARQ-ACK bit sequence fed back by the UE is the same as that in Embodiment 6, and is also nACK r ⁇ ACK ⁇
  • the bit sequence is . i ⁇ A ' , the HARQ-ACK correspondence between the bit sequence and the corresponding codeword stream of the serving cell is as shown in FIG. 21.
  • the base station configures the downlink allocation indication information as B.
  • the UE uses the number of REs occupied by the HARQ-ACK bit sequence fed back on the PUSCH.
  • the transmission mode of the configured serving cell and the serving cell is the same as that in Embodiment 6, except that the current scheduling situation is different.
  • the HARQ-ACK bit sequence fed back by the UE is the same as that in Embodiment 6, that is, nACK nACK nACK nACK ⁇ ACK ⁇ ACK
  • the HARQ-ACK correspondence between the bit sequence and the corresponding codeword stream of the serving cell is as shown in FIG. 22.
  • the base station can adjust the HARQ-ACK bit sequence when the UE feeds back the HARQ-ACK on the PUSCH by configuring the downlink allocation indication information.
  • the RE number is used to reduce the impact on the PUSCH when the HARQ-ACK is transmitted on the PUSCH.
  • Embodiment 9 The embodiment of the present invention provides a feedback processing system for HARQ-ACK, which can be used to implement the methods in Embodiments 1 to 8 above.
  • FIG. 23 is a flowchart of a feedback processing system for HARQ-ACK according to an embodiment of the present invention. As shown in FIG.
  • the system includes: a base station 2302, configured to configure multiple uplink and downlink subframes when the UE 2304 is configured with multiple serving cells.
  • the value is 1 or 6, and the binding window size is 1, the lower DCI format 0 and/or 4 is sent to the UE 2304, where the two-bit downlink allocation indication in the DCI format 0 and/or 4 is used to indicate the current sub- The downlink scheduling situation of the frame; the UE 2304 is coupled to the base station 2302, and is configured to determine a HARQ-ACK bit sequence fed back on the PUSCH according to the DAI information and/or determine a RE number occupied by the HARQ-ACK bit sequence.
  • the base station informs the UE of the downlink scheduling situation, and the UE further determines the HARQ-ACK bit sequence fed back on the PUSCH according to the scheduling situation and/or determines the number of REs occupied by the HARQ-ACK bit sequence, thereby enabling the UE to The size of the transmitted HARQ-ACK bit sequence and the occupied resource unit meet the actual needs and do not exceed the feedback actually needed by the base station.
  • the UE 2304 determines that the size of the HARQ-ACK bit sequence and/or the number of REs is 0.
  • the configured HARQ-ACK feedback mode is channel selection and the configured transmission modes of the two downlink serving cells are is a single codeword streaming mode
  • the size of the -ACK bit sequence is 1, and the bit sequence is determined to be 0 CK , where 0 CK corresponds to
  • the size of the -ACK bit sequence and/or the number of REs is zero.
  • the size of the -ACK bit sequence and/or the number of REs is zero.
  • the UE 2304 can perform the following operations: When the DAI information is A, the UE 2304 determines that the size of the HARQ-ACK bit sequence is 3, and determines that the bit sequence is a sum, where 0 CK corresponds to the HARQ-ACK response message of the primary serving cell, and onno ⁇ corresponds to the HARQ of the secondary serving cell.
  • the UE 2304 may perform the following operations: The UE 2304 determines that the HARQ-ACK bit sequence is the HARQ-ACK response message corresponding to the corresponding codeword stream of the configured downlink serving cell according to the downlink service.
  • the cell index is from a low to an advanced bit sequence; and/or the UE 2304 is determined based on the downlink allocation index. , and use 0 to calculate the RE number.
  • the UE may determine a suitable HARQ-ACK bit sequence according to actual conditions.
  • ff takes a value of 1 or 5
  • the DAI information is B
  • ff takes a value of 2
  • the DAI information is C
  • the value is 3
  • the DAI information is D
  • the value is 4 or 0.
  • the value obtained by the DAI information can be conveniently obtained.
  • the DAI information is A
  • the DAI information is D
  • A, B, C, and D are one of binary numbers of 2 bits, and B, C, and D are not equal to each other.
  • the base station 2302 transmits one or more DCI formats 0 and/or 4 to the UE 2304 on the subframe, the values of the DAI information in the one or more DCI formats are the same.
  • the UE 2304 when the UE 2304 receives one or more DCI formats 0 and/or 4 on the subframe, the UE 2304 assumes that the values of the DAI information in the one or more DCI formats are the same, for example, when the UE 2304 receives When three of the four DCI formats 0 and/or 4 have the same DAI information, the value of the received DAI information is considered to be the same as the value of the three identical DAI information.
  • a feedback processing software for HARQ-ACK is provided, which is used to implement the technical solutions described in the foregoing embodiments and preferred embodiments.
  • a storage medium is provided, wherein the storage mechanism stores the foregoing
  • the embodiment of the present invention uses the base station to inform the UE of the downlink scheduling situation, and the UE further determines the HARQ-ACK bit sequence and the P/s that are fed back on the PUSCH according to the scheduling situation, and determines the RE occupied by the HARQ-ACK bit sequence.
  • the number mode achieves the effect of the size of the HARQ-ACK bit sequence transmitted by the UE and the occupied resource unit in accordance with actual needs.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Landscapes

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

Abstract

L'invention porte sur un procédé et un système de traitement de rétroaction HARQ-ACK. Le procédé comprend les opérations suivantes : quand un UE est configuré avec de multiples cellules de desserte, une ou six sous-trames de liaison montante et de liaison descendante sont configurées et une taille d'une fenêtre de groupage est égale à 1, alors une station de base envoie des DCI format 0 et/ou 4 à l'UE, des informations d'indication d'attribution de liaison descendante (DAI) à deux bits dans les DCI format 0 et/ou 4 étant utilisées pour indiquer une condition de planification de liaison descendante d'une sous-trame courante; et l'UE détermine, conformément aux informations DAI, une séquence binaire HARQ-ACK renvoyée sur un PUSCH et/ou détermine le nombre de RE occupés par la séquence binaire HARQ-ACK. La présente invention atteint l'effet selon lequel la taille et les unités de ressource occupées d'une séquence binaire HARQ-ACK envoyée par un UE satisfont les exigences réelles.
PCT/CN2012/074299 2011-06-16 2012-04-18 Procédé et système de traitement de rétroaction harq-ack WO2012171413A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110162608.0A CN102223219B (zh) 2011-06-16 2011-06-16 Harq‑ack的反馈处理方法及系统
CN201110162608.0 2011-06-16

Publications (1)

Publication Number Publication Date
WO2012171413A1 true WO2012171413A1 (fr) 2012-12-20

Family

ID=44779654

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/074299 WO2012171413A1 (fr) 2011-06-16 2012-04-18 Procédé et système de traitement de rétroaction harq-ack

Country Status (2)

Country Link
CN (1) CN102223219B (fr)
WO (1) WO2012171413A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9794029B2 (en) 2012-05-09 2017-10-17 Goldpeak Innovations Inc Methods for transmitting and receiving hybrid automatic retransmit request-acknowledgment (HARQ-ACK) index mapping and uplink resource allocation for channel selection transmission in inter-band time division duplex mode, user equipment to transmit HARQ-ACK, and eNODE-B to receive HARQ-ACK
RU2679245C1 (ru) * 2015-04-10 2019-02-06 Телефонактиеболагет Лм Эрикссон (Пабл) Способ и пользовательское оборудование для сжатия обратной связи harq
CN110401980A (zh) * 2018-04-25 2019-11-01 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102223219B (zh) * 2011-06-16 2017-07-18 中兴通讯股份有限公司 Harq‑ack的反馈处理方法及系统
MX355343B (es) * 2011-11-04 2018-04-16 Intel Corp Selección de sincronización de reconocimiento en comunicaciones inalámbricas.
CN103516487B (zh) * 2012-06-18 2017-11-28 中兴通讯股份有限公司 混合自动重传请求确认应答信息的传输方法和终端
EP3605916B1 (fr) * 2013-08-09 2021-03-03 Sun Patent Trust Mécanisme de reconfiguration de liaison montante/liaison descendante tdd
CN103944701B (zh) 2013-08-26 2017-08-08 上海朗帛通信技术有限公司 一种tdd‑fdd联合系统中的传输方法和装置
JP5931828B2 (ja) * 2013-09-26 2016-06-08 株式会社Ｎｔｔドコモ ユーザ端末、基地局及び無線通信方法
CN104935419B (zh) * 2014-03-20 2019-12-13 中兴通讯股份有限公司 一种上行控制信道聚合发送和接收方法、终端和基站
CN106688292B (zh) * 2014-09-10 2020-05-15 夏普株式会社 终端、基站以及通信方法
CN105846977B (zh) * 2015-01-29 2021-02-02 北京三星通信技术研究有限公司 一种增强载波聚合系统的harq-ack传输方法和设备
US9888465B2 (en) 2015-04-06 2018-02-06 Samsung Electronics Co., Ltd. Codeword determination for acknowledgement information
JP2018101821A (ja) * 2015-04-24 2018-06-28 シャープ株式会社 端末装置、基地局装置、集積回路、および、通信方法
CN106301670A (zh) * 2015-05-15 2017-01-04 中兴通讯股份有限公司 上行控制信息的发送方法及装置
CN106452661B (zh) * 2015-08-10 2020-05-22 中兴通讯股份有限公司 应答信息的传输方法、装置、基站及终端
CN106961744A (zh) * 2016-01-11 2017-07-18 中兴通讯股份有限公司 上行控制信息的发送方法及装置
WO2017161541A1 (fr) * 2016-03-24 2017-09-28 华为技术有限公司 Procédé et appareil pour une rétroaction de demande de répétition automatique hybride de données de liaison descendante
WO2018222102A1 (fr) * 2017-06-02 2018-12-06 Telefonaktiebolaget Lm Ericsson (Publ) Taille de signalisation de commande
CN109412760B (zh) * 2017-08-18 2021-11-26 中国电信股份有限公司 上行反馈方法、装置和计算机可读存储介质
IL273027B2 (en) 2017-09-05 2024-04-01 Guangdong Oppo Mobile Telecommunications Corp Ltd A method for transmitting information and a related product
WO2019157683A1 (fr) 2018-02-13 2019-08-22 华为技术有限公司 Procédé et appareil de transmission d'informations de commande de liaison montante
CN111435901B (zh) * 2019-02-22 2023-07-21 维沃移动通信有限公司 混合自动重传请求确认反馈方法、终端和网络设备
CN116321470A (zh) 2019-03-29 2023-06-23 大唐移动通信设备有限公司 Harq机制的处理方法、指示方法、终端及网络侧设备
CN111865510B (zh) 2019-04-30 2021-11-23 大唐移动通信设备有限公司 一种harq-ack的传输方法、用户设备及网络侧设备
CN111953445B (zh) * 2019-05-14 2022-07-01 中国移动通信集团山东有限公司 Harq-ack反馈模式的设置方法、装置和用户设备
CN112398607B (zh) * 2019-08-14 2022-06-21 大唐移动通信设备有限公司 混合自动重传请求应答的传输指示方法及设备
EP4122133A4 (fr) * 2020-05-22 2023-04-26 ZTE Corporation Procédés et dispositifs de configuration de renvoi de harq-ack

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010145313A1 (fr) * 2009-06-18 2010-12-23 中兴通讯股份有限公司 Procédé et terminal d’émission d’états de rétroaction
CN101958778A (zh) * 2010-09-28 2011-01-26 中兴通讯股份有限公司 正确/错误应答消息的映射方法及终端
CN102223219A (zh) * 2011-06-16 2011-10-19 中兴通讯股份有限公司 Harq-ack的反馈处理方法及系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101350701B (zh) * 2007-07-19 2011-04-06 鼎桥通信技术有限公司 一种调度hsdpa资源的方法及系统
US7957329B2 (en) * 2008-03-16 2011-06-07 Lg Electronics Inc. Method of performing hybrid automatic repeat request (HARQ) in wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010145313A1 (fr) * 2009-06-18 2010-12-23 中兴通讯股份有限公司 Procédé et terminal d’émission d’états de rétroaction
CN101958778A (zh) * 2010-09-28 2011-01-26 中兴通讯股份有限公司 正确/错误应答消息的映射方法及终端
CN102223219A (zh) * 2011-06-16 2011-10-19 中兴通讯股份有限公司 Harq-ack的反馈处理方法及系统

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9794029B2 (en) 2012-05-09 2017-10-17 Goldpeak Innovations Inc Methods for transmitting and receiving hybrid automatic retransmit request-acknowledgment (HARQ-ACK) index mapping and uplink resource allocation for channel selection transmission in inter-band time division duplex mode, user equipment to transmit HARQ-ACK, and eNODE-B to receive HARQ-ACK
US10873426B2 (en) 2012-05-09 2020-12-22 Pantech Corporation Methods for transmitting and receiving hybrid automatic retransmit request-acknowledgment (HARQ-ACK) index mapping and uplink resource allocation for channel selection transmission in inter-band time division duplex mode, user equipment to transmit HARQ-ACK, and eNode-B to receive HARQ-ACK
RU2679245C1 (ru) * 2015-04-10 2019-02-06 Телефонактиеболагет Лм Эрикссон (Пабл) Способ и пользовательское оборудование для сжатия обратной связи harq
US10778381B2 (en) 2015-04-10 2020-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and user equipment for compacting HARQ feedback
CN110401980A (zh) * 2018-04-25 2019-11-01 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN110401980B (zh) * 2018-04-25 2022-12-27 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置

Also Published As

Publication number Publication date
CN102223219A (zh) 2011-10-19
CN102223219B (zh) 2017-07-18

Similar Documents

Publication Publication Date Title
CN102223219B (zh) Harq‑ack的反馈处理方法及系统
CN111510252B (zh) 在无线通信系统中发送ack/nack的方法和使用该方法的设备
JP6192663B2 (ja) フィードバック情報を送受信するためのデバイス
JP5939991B2 (ja) コードワードの選択およびアップリンク制御情報のシンボル長の決定
US9537614B2 (en) Method for sending hybrid automatic repeat request acknowledgement message and user equipment
WO2017049463A1 (fr) Procédé et dispositif de transmission d'informations de commande de liaison montante (uci) dans un scénario à agrégation de porteuses
JP6526231B2 (ja) 制御情報を送信するための方法、ユーザ機器、及び基地局
CN107113097B (zh) 在无线通信系统中发送ack/nack的方法和设备
CN101958777B (zh) 正确/错误应答消息发送的处理方法及装置
CN116405165A (zh) 发送harq-ack/nack的方法和设备及下行传输方法和设备
WO2012041101A1 (fr) Procédé et terminal de mappage d'un message de réponse d'accusé de réception/d'accusé de réception négatif
WO2012129952A1 (fr) Procédé et système destinés à l'envoi d'un message d'accusé de réception dans un système à duplexage par répartition dans le temps
WO2013152621A1 (fr) Procédé et appareil de transmission d'informations d'accusé de réception de demande automatique de répétition hybride
WO2013097347A1 (fr) Procédé et dispositif pour envoyer des informations d'accusé de réception de demande automatique de retransmission hybride
WO2012022140A1 (fr) Procédé et système destinés à renvoyer un accusé de réception/un accusé de réception négatif sur un canal de commande de liaison montante physique
WO2012155701A1 (fr) Procédé et terminal pour envoyer de l'information en retour
CN102088343A (zh) 载波聚合时反馈ack/nack信息的方法、基站和用户设备
WO2011085582A1 (fr) Système à plusieurs porteuses et procédé d'envoi de messages d'accusé de réception/accusé de réception négatif
KR20140004242A (ko) Ａｃｋ/ｎａｃｋ 피드백 정보 전송 방법 및 장치
WO2019242711A1 (fr) Procédé et dispositif de génération d'informations de demande de répétition automatique hybride (harq)
WO2011054206A1 (fr) Procédé et appareil d'encodage pour message de réponse à accusé de réception/accusé de réception négatif et signalisation d'indicateur de rang
WO2013010472A1 (fr) Procédé et dispositif de transmission d'informations de rétroaction
WO2012034536A1 (fr) Procédé d'envoi de message de réponse, station de base et équipement utilisateur
WO2010127577A1 (fr) Procédé et système permettant de renvoyer des informations d'accusé de réception/d'accusé de réception négatif
JP2018530202A (ja) 情報送信方法、情報受信方法、およびデバイス

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12799836

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12799836

Country of ref document: EP

Kind code of ref document: A1