WO2011085582A1 - Système à plusieurs porteuses et procédé d'envoi de messages d'accusé de réception/accusé de réception négatif - Google Patents

Système à plusieurs porteuses et procédé d'envoi de messages d'accusé de réception/accusé de réception négatif Download PDF

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Publication number
WO2011085582A1
WO2011085582A1 PCT/CN2010/074800 CN2010074800W WO2011085582A1 WO 2011085582 A1 WO2011085582 A1 WO 2011085582A1 CN 2010074800 W CN2010074800 W CN 2010074800W WO 2011085582 A1 WO2011085582 A1 WO 2011085582A1
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WIPO (PCT)
Prior art keywords
downlink
terminal
control channel
response message
physical
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PCT/CN2010/074800
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English (en)
Chinese (zh)
Inventor
梁春丽
夏树强
米德忠
戴博
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中兴通讯股份有限公司
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Publication of WO2011085582A1 publication Critical patent/WO2011085582A1/fr

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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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

Definitions

  • the present invention relates to the field of digital communications, and in particular to a multi-carrier system with a large bandwidth and a method for transmitting a correct/error response message in the multi-carrier system.
  • the code transmitted by the originator not only can detect errors, but also has certain error correction capability.
  • the receiver decoder After receiving the codeword, the receiver decoder first checks the error condition. If the error correction capability of the code is within, the error correction is automatically performed. If the error is too much, the error correction capability of the code is exceeded, but the error can be detected.
  • the receiving end sends a decision signal to the sending end through the feedback channel, and requests the originating end to resend the information.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the correct or error message is transmitted by the ACK/NACK: Acknowledgement/Negative Acknowledgement control signaling, and the judgment is made. Whether you need to retransmit.
  • the ACK/NACK response message of the Physical Downlink Shared Channel (PDSCH), when the terminal (UE: User Equipment) has no physical uplink in the current subframe.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • the ACK/NACK information is multiplexed.
  • the PUSCH it is transmitted together with the data modulation using the same modulation and coding scheme.
  • the terminal When the PDSCH contains only one transport block, the terminal shall feed back a 1-bit ACK/NACK response. Message, when the PDSCH contains two transport blocks, the terminal shall feed back a 2-bit ACK/NACK response message.
  • the IMT-Advanced system In the International Mobile Telecommunications-Advanced (IMT-Advanced) system, it can realize high-speed data transmission and has a large system capacity. In the case of low-speed mobile and hotspot coverage, the IMT-Advanced system The peak rate can reach 1Gbit/s. In the case of high-speed mobile and wide-area coverage, the peak rate of the IMT-Advanced system can reach 100Mbit/s.
  • LTE-A Long Term Evolution Advanced
  • CA Carrier Aggregation
  • a current working assumption of LTE-A is that for a PDSCH transmission of non-semi-persistent scheduling (SPS) on each downlink component carrier, it has a corresponding PDCCH to carry its corresponding downlink configuration information.
  • the PDCCH carrying the downlink configuration information and the PDSCH may be on the same component carrier (when there is no carrier indicator (CI) in the DCI), or on different component carriers (when the CII is introduced in the DCI) Time) .
  • the uplink bandwidth and the downlink bandwidth may include multiple component carriers.
  • the base station schedules a PDSCH for a certain UE on multiple downlink component carriers, and when the UE does not transmit a PUSCH in the current subframe, the terminal needs to feed back the ACK of the PDSCH transmission of the multiple downlink component carriers on the PUCCH.
  • the NACK acknowledges the message, and when the UE has a PUSCH to transmit on the current subframe, the terminal may reply to the ACK/NACK response message. Used on PUSCH, sent simultaneously with data.
  • a direct method is to feed back multiple ACK/NACK response messages in the same manner as LTE on multiple PUCCH channels corresponding to multiple downlink component carriers. This method is relatively simple and can maintain compatibility with LTE. However, because multiple PUCCH channels are transmitted simultaneously on the uplink, the uplink single carrier characteristics are destroyed. When the UE power is limited, the ACK/NACK detection will be affected. Performance, or the performance of the uplink coverage is degraded.
  • Another method is the binding method, which is to perform feedback operation (bundling, that is, logical AND operation) on ACK/NACK response messages of multiple downlink carriers, and then feed back on a single PUCCH channel.
  • feedback operation that is, logical AND operation
  • TDD time division duplex
  • multiplexing multiplexing with channel selection
  • the core idea of the method is to use different PUCCH channels and different channels. Modulation symbols to indicate different feedback states for all carriers. Since the method feeds back only on one PUCCH channel, there is no problem of destroying the single carrier characteristic, and the problem of throughput reduction caused by the binding method is avoided, so the method is supported by a plurality of companies.
  • the first one is called NxPUCCH
  • the second is called bundling
  • the third is called multiplexing. Because of the latter two ACK/NACK feedback modes, the uplink single carrier is guaranteed, and thus, in the LTE-A system.
  • Both of these methods can be used as a candidate for the feedback scheme when the ACK/NACK response message in the LTE-A system is transmitted on the PUCCH.
  • the downlink configuration information (bearing on the corresponding PDCCH) of the PDSCH on some component carriers is lost, and the UE cannot correctly detect the loss of the downlink configuration information due to the lack of a corresponding mechanism, thereby causing the UE not to correctly feed back the ACK/NACK. Reply message.
  • the technical problem to be solved by the present invention is to provide a multi-carrier system with a large bandwidth and a method for transmitting a correct/error response message in the multi-carrier system, and to solve the problem that the downlink configuration information may be lost in the multi-carrier system. Next, how to implement the sending of an ACK/NACK response message.
  • the present invention provides a method for transmitting a correct/error response message in a multi-carrier system, including:
  • the base station indicates a downlink allocation index related to the physical downlink shared channel transmission on the physical downlink control channel related to the physical downlink transmission and/or indicates a downlink related to the physical downlink shared channel transmission on the physical downlink control channel related to the physical uplink transmission. Allocating an index, sending a physical downlink shared channel and a corresponding physical downlink control channel to the terminal;
  • the terminal detects the physical downlink control channel, and obtains the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical downlink transmission, and obtains the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical uplink transmission as ⁇ ;
  • the number of component carriers that are actually detected by the physical downlink shared channel with the corresponding physical downlink control channel is U, and the number of component carriers transmitted by the physical downlink shared channel without the corresponding physical downlink control channel is N sps ;
  • the terminal performs physical downlink shared channel detection according to the detected downlink configuration information of the physical downlink control channel, and obtains a correct/error response message corresponding to each codeword stream of the physical downlink shared channel of the corresponding downlink component carrier;
  • the terminal performs correct/error response on the physical uplink shared channel or the physical uplink control channel according to the combination of the i, v ⁇ , u, according to the binding or multiplexing manner of the base station configuration to the terminal in the subframe n+K.
  • the sending of the message is not limited to the message.
  • the method further includes: when the terminal sends an error response message in the subframe n+K, the terminal indicates the cause of the error response message to the base station according to the binding or multiplexing manner configured by the base station to the terminal.
  • the step of indicating, by the base station, the downlink allocation index related to the physical downlink shared channel transmission on the physical downlink control channel related to the physical downlink transmission includes: in a downlink control information format of the physical downlink control channel related to the physical downlink shared channel transmission Add a downlink allocation index DAI a field, used to indicate the number of downlink component carriers used for performing physical downlink shared channel transmission, which is allocated to the current downlink component carrier in the current subframe according to a certain carrier scheduling order;
  • the step of indicating, by the base station, the downlink allocation index related to the physical downlink shared channel transmission on the physical downlink control channel related to the physical uplink transmission includes: in a downlink control information format of the physical downlink control channel related to the physical uplink shared channel transmission A downlink allocation index DAI field is added to indicate the number of downlink component carriers allocated for the physical downlink shared channel transmission in the current subframe.
  • the step of detecting, by the terminal, the physical downlink control channel, and obtaining the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical downlink transmission includes: the terminal performing physical downlink control channel detection according to a certain carrier sequence, and detecting the terminal The value of the DAI field in the downlink control information format associated with the physical uplink shared channel transmission;
  • the step of detecting, by the terminal, the physical downlink control channel, and obtaining the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical uplink transmission includes: the terminal detecting that there is a physical downlink control channel related to the physical uplink shared channel transmission, Then, the value of the DAI field in the downlink control information format of the corresponding physical downlink control channel is set.
  • the terminal performs correct/error response on the physical uplink shared channel or the physical uplink control channel according to the combination of the i and v ⁇ u according to the binding or multiplexing mode of the base station configuration to the terminal in the subframe n+K.
  • the step of transmitting the message includes: if the terminal has a physical uplink shared channel PUSCH to be transmitted on the subframe n+K, then the correct/error response message is fed back on the physical uplink shared channel, otherwise, the feedback on the physical uplink control channel is correct/ Error response message. among them:
  • the terminal uses the binding mode, and when the physical uplink shared channel feeds back the correct/error response message, the step of feeding back the correct/error response message on the physical uplink shared channel includes: first determining whether at least one downlink configuration information is lost, if any Then, all the codeword streams generate an error response signal; if not, the ⁇ / ⁇ + ⁇ independent physical downlink shared channel transmits the corresponding correct/error response message of each codeword stream, and the binding is performed. The correct/error response message is then shared in the physical uplink shared channel.
  • the step of the binding correct/error response message in the physical uplink shared channel feedback includes: determining the corresponding binding number, and using the binding The number selects scrambling for the error response message.
  • the terminal uses the binding mode, and when the physical uplink control channel feeds back the correct/error response message, the step of feeding back the correct/error response message on the physical uplink control channel includes: first determining whether at least one downlink configuration information is lost, if any , the terminal does not send any correct/error response signal; otherwise, the U DA1 + N SPS independent physical downlink shared channel transmits the corresponding correct/error response message of each codeword stream, and the binding is correct/ The error response message is fed back on the physical uplink control channel.
  • the terminal uses the format la or lb of the physical uplink control channel to send the bound correct/error response message.
  • the terminal uses the multiplexing mode, and when the physical uplink shared channel feeds back the correct/error response message, the step of feeding back the correct/error response message on the physical uplink shared channel includes: first, according to the number of downlink component carriers in the downlink component carrier set Or the I determines the number of feedback bits of the correct/error response message, and then performs the binding operation between the codeword streams on the correct/error response message detected on each codeword stream, and then maps the binding value to the number of feedback bits. In the corresponding bit.
  • the terminal uses the multiplexing mode, and when the physical uplink control channel feeds back the correct/error response message, the step of feeding back the correct/error response message on the physical uplink control channel includes: first, according to the number of downlink component carriers in the downlink component carrier set Determining the number of feedback bits of the correct/error response message, and performing a binding operation between the codeword streams on the correct/error response message detected on each codeword stream, and obtaining a number of bound correct/error response messages after the feedback bits Then select an available physical uplink control channel and use the format lb to send the bound correct/error response message.
  • the value of the K is determined according to the timing relationship of the downlink hybrid automatic request retransmission HARQ.
  • the physical downlink control channel associated with the physical uplink shared channel transmission transmits only one of the downlink component carrier sets.
  • the present invention also provides a multi-carrier system, including: a base station and a terminal, where:
  • the base station is configured to: indicate a downlink allocation index related to physical downlink shared channel transmission on a physical downlink control channel related to physical downlink transmission, and/or indicate and physical downlink on a physical downlink control channel related to physical uplink transmission Sharing a downlink allocation index related to channel transmission, and sending a physical downlink shared channel and a corresponding physical downlink control channel to the terminal;
  • the terminal is set to: detect the physical downlink control channel, according to the physical related to the physical downlink transmission
  • the downlink control channel acquires the downlink allocation index of the subframe n, and obtains the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical uplink transmission as ⁇ ; the actually detected physical downlink shared channel with the corresponding physical downlink control channel
  • the number of component carriers transmitted is u DAI
  • the number of component carriers transmitted by the physical downlink shared channel without the corresponding physical downlink control channel is N SPS ;
  • the terminal is further configured to: perform physical downlink shared channel detection according to the detected downlink configuration information of the physical downlink control channel, and obtain a correct/error response message corresponding to each codeword stream of the physical downlink shared channel of the corresponding downlink component carrier;
  • the terminal is on the subframe n+K, according to the I, C,
  • the combination of U DAI and the physical uplink shared channel or the physical uplink control channel performs the transmission of the correct/error response message according to the binding or multiplexing mode of the base station configuration to the terminal.
  • the terminal is further configured to: when performing the error response message transmission on the subframe n+K, indicate the cause of the error response message to the base station according to the binding or multiplexing manner of the base station configuration to the terminal.
  • the base station is configured to indicate a downlink allocation index related to physical downlink shared channel transmission on a physical downlink control channel related to physical downlink transmission in a manner of: downlink control of a physical downlink control channel related to physical downlink shared channel transmission Adding a downlink allocation index DAI field to the information format, which is used to indicate the number of downlink component carriers used for physical downlink shared channel transmission allocated to the current downlink component carrier in the current subframe according to a certain carrier scheduling order;
  • the base station is configured to indicate a downlink allocation index related to physical downlink shared channel transmission on a physical downlink control channel related to physical uplink transmission in a manner of: downlink control of a physical downlink control channel related to physical uplink shared channel transmission
  • a downlink allocation index DAI field is added to the information format, and is used to indicate the number of downlink component carriers allocated for the physical downlink shared channel transmission in the current subframe.
  • the terminal is configured to detect the physical downlink control channel in the following manner, and obtain the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical downlink transmission to be I: perform physical downlink control channel detection according to a certain carrier sequence, The value of the DAI field in the downlink control information format related to the physical uplink shared channel transmission detected by the terminal;
  • the terminal is configured to detect the physical downlink control channel in the following manner, and obtain a downlink allocation index of the subframe n according to the physical downlink control channel related to the physical uplink transmission: 3 ⁇ 4: detecting a physical downlink related to the physical uplink shared channel transmission Control channel, then let v be the corresponding physical downlink The value of the DAI field in the downlink control information format of the control channel.
  • the terminal is configured to send a correct/error response message in the following manner: if the terminal has a physical uplink shared channel PUSCH to be transmitted on the subframe n+K, the correct/error response message is fed back on the physical uplink shared channel, otherwise, The correct/error response message is fed back on the physical uplink control channel. among them,
  • the terminal is configured to use the binding mode in the following manner, and feedback the correct/error response message on the physical uplink shared channel: first, it is determined whether at least one downlink configuration information is lost, and if so, all the codeword streams generate an error response signal; Otherwise, the correct/error response message of each codeword stream corresponding to each of the independent physical downlink shared channels is bound, and the bound correct/error response message is fed back on the physical uplink shared channel. After the terminal binds the correct/error response message, it needs to send an error response signal to determine the corresponding binding number, and use the binding number to select the scrambling error message.
  • the terminal is configured to use the binding mode in the following manner, and feed back the correct/error response message on the physical uplink control channel: first, it is determined whether at least one downlink configuration information is lost, and if yes, the terminal does not send any correct/error response signal; Otherwise, the U DM + N sps independent physical downlink shared channel transmits the corresponding correct/error response message of each codeword stream, and the bound correct/error response message is fed back on the physical uplink control channel.
  • the terminal uses the format la or lb of the physical uplink control channel to send the bound correct/error response message.
  • the terminal is configured to use the multiplexing mode in the following manner to feed back the correct/error response message in the physical uplink shared channel: first, determine the feedback of the correct/error response message according to the number of downlink component carriers in the downlink component carrier set or the i After the number of bits, the correct/error response message detected on each codeword stream is subjected to a binding operation between the codeword streams, and the binding value is mapped to the corresponding bit in the feedback bit number.
  • the terminal is configured to use the multiplexing mode in the following manner, and feed back the correct/error response message on the physical uplink control channel: first, determine the number of feedback bits of the correct/error response message according to the number of downlink component carriers in the downlink component carrier set, After the correct/error response message detected on each codeword stream is subjected to the binding operation between the codeword streams, a number of bound correct/error response messages are obtained from the feedback bits; and then an available physical uplink control channel is selected, ⁇ The formatted lb is used to send the bound correct/error response message.
  • the value of the K is determined according to the timing relationship of the downlink hybrid automatic request retransmission HARQ.
  • the physical downlink control channel sent by the base station and related to the physical uplink shared channel transmission is only sent in the downlink component carrier set.
  • the multi-carrier system under the large bandwidth of the present invention and the method for transmitting the correct/error response message in the multi-carrier system, can implement the sending of the ACK/NACK response message when the downlink configuration information may be lost in the multi-carrier system. . Further, if the NACK response message is fed back, the terminal may also indicate to the base station the reason why the NACK response occurs when transmitting. There are two ways to use the two channels for feedback, which has good applicability and flexibility. BRIEF abstract
  • Figure 1 is a schematic diagram of ACK/NACK when transmitted in bundling mode
  • 2 is a schematic diagram of ACK/NACK transmission in bundling mode, and when downlink configuration information is lost;
  • FIG. 3 is a schematic diagram of the ACK/NACK multiplexing mode, when transmitted on the PUSCH;
  • FIG. 4 is a schematic diagram of the ACK/NACK multiplexing mode, which is transmitted on the PUSCH and the downlink transmission includes the SPS PDSCH;
  • FIG. 5 is a schematic diagram of the ACK/NACK multiplexing mode, when the PUSCH is transmitted and the downlink configuration information is lost;
  • FIG. 6 is another schematic diagram of the ACK/NACK multiplexing mode, which is transmitted on the PUSCH, and the SPS PDSCH transmission is included in the downlink transmission, and the downlink configuration information is lost;
  • FIG. 7 is a schematic diagram of an ACK/NACK multiplexing mode, which is transmitted on a PUSCH (but the PUSCH does not have a corresponding PDCCH) or is transmitted on a PUCCH;
  • Figure 8 shows the ACK/NACK multiplexing mode, which is sent on the PUSCH (but this
  • Figure 9 is an ACK/NACK multiplexing mode, which is sent on the PUSCH (but this A schematic diagram when the PUSCH does not have a corresponding PDCCH or is sent on the PUCCH and the downlink configuration information is lost;
  • FIG. 10 is a schematic diagram of the ACK/NACK multiplexing mode, which is transmitted on the PUSCH (but the PUSCH does not have a corresponding PDCCH) or is transmitted on the PUCCH, the SPS PDSCH transmission is included in the downlink transmission, and the downlink configuration information is lost. ;
  • 11 is a schematic diagram of the ACK/NACK multiplexing mode, which is transmitted on the PUSCH and the number of downlink component carriers is 5.
  • Preferred embodiment of the invention
  • the present invention provides a multi-carrier system and a method for transmitting a correct/error response message in the multi-carrier system.
  • the present invention is particularly applicable to the ACK/NACK response message transmission in the LTE-A system, and can ensure that the UE side can correctly feed back the ACK/NACK response message, and the base station side can correctly detect the UE receiving the PDSCH.
  • the present invention is primarily directed to FDD systems.
  • the base station performs downlink scheduling on the UE, the PDSCH transmission is performed by using one or more component carriers in the downlink component carrier set S.
  • the mode in which the base station configures the UE to feed back the ACK/NACK response message is bundling or multiplexing.
  • a multi-carrier system of the present invention includes: a base station and a terminal, wherein:
  • a base station configured to indicate a downlink allocation index related to physical downlink shared channel transmission on a physical downlink control channel related to physical downlink transmission, and/or to indicate and physical downlink on a physical downlink control channel related to physical uplink transmission Sharing a downlink allocation index related to channel transmission, and sending a physical downlink shared channel and a corresponding physical downlink control channel to the terminal;
  • the terminal is configured to detect a physical downlink control channel, and obtain a downlink allocation index of the subframe n according to the physical downlink control channel related to the physical downlink transmission, according to the physical uplink transmission related object
  • the downlink downlink control channel acquires the downlink allocation index of the subframe n as ⁇ ; the actually detected number of component carriers of the physical downlink shared channel transmission with the corresponding physical downlink control channel is u DM , and the physical downlink shared channel without the corresponding physical downlink control channel
  • the number of component carriers transmitted is N SPS ;
  • the terminal is further configured to perform physical downlink shared channel detection according to the downlink configuration information of the detected physical downlink control channel, and obtain a correct/error response message corresponding to each codeword stream of the physical downlink shared channel of the corresponding downlink component carrier;
  • the terminal is on the subframe n+K, according to the i, v,
  • the combination of U DAI and the physical uplink shared channel or the physical uplink control channel performs the transmission of the correct/error response message according to the binding or multiplexing mode of the base station configuration to the terminal.
  • the terminal is further configured to indicate, to the base station, the cause of the error response message according to the binding or multiplexing manner of the base station configuration to the terminal when the error response message is sent on the subframe n+K.
  • the method for transmitting a correct/error response message in a multi-carrier system of the present invention includes: indicating, by a base station, a downlink allocation index related to physical downlink shared channel transmission and/or in a physical downlink control channel related to physical downlink transmission
  • the physical downlink control channel related to the physical uplink transmission indicates a downlink allocation index related to the physical downlink shared channel transmission, and sends the physical downlink shared channel and the corresponding physical downlink control channel to the terminal;
  • the terminal detects the physical downlink control channel, and obtains the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical downlink transmission, and obtains the downlink allocation index of the subframe n according to the physical downlink control channel related to the physical uplink transmission as ⁇ ;
  • the number of component carriers that are actually detected by the physical downlink shared channel with the corresponding physical downlink control channel is u DAI
  • the number of component carriers transmitted by the physical downlink shared channel without the corresponding physical downlink control channel is N SPS ;
  • the terminal performs physical downlink shared channel detection according to the detected downlink configuration information of the physical downlink control channel, and obtains a correct/error response message corresponding to each codeword stream of the physical downlink shared channel of the corresponding downlink component carrier;
  • the terminal performs correct/error response on the physical uplink shared channel or the physical uplink control channel according to the combination of the i, v ⁇ , u, according to the binding or multiplexing mode of the base station configuration to the terminal in the subframe n+K.
  • the sending of the message is not limited to the transmission of the base station.
  • the terminal When the terminal sends an error response message on the subframe n+K, the terminal further configures according to the base station.
  • the binding or multiplexing mode set to the terminal indicates to the base station the cause of the error response message.
  • the base station adds a downlink allocation index (DAI) in the downlink control information (DCI) of the physical downlink control channel, specifically, A, the base station is sharing the channel with the physical downlink.
  • DCI downlink allocation index
  • a DCI (Downlink Assignment Index) field is added to the DCI format of the PDCCH, and is used to indicate that the current downlink subframe is allocated to the UE in the current carrier scheduling order.
  • downlink component carriers in the downlink component carrier set are numbered in a certain order, and when scheduling is performed, PDSCH scheduling is sequentially performed on the corresponding carrier in this order.
  • the base station adds a DAI (Downlink Assignment Index) field to the DCI format of the physical downlink control channel PDCCH related to the physical uplink shared channel PUSCH transmission, and is used to indicate the downlink allocated for the PDSCH transmission allocated to the UE in the current subframe.
  • DAI Downlink Assignment Index
  • the value of the DAI field may also be more bits, for example, m bits.
  • the specific bit combination definition may be set according to actual conditions, and details are not described herein again.
  • DAI field in DCI format related to physical uplink shared channel PUSCH transmission When the value of the uplink DAI is 1, and the DCI format associated with the downlink PDSCH transmission is detected, the value of the uplink DAI is 1 and the number of component carriers for the PDSCH transmission is 5;
  • the downlink DAI when the DAI field (referred to as the downlink DAI) in the DCI format related to the physical downlink shared channel PDSCH transmission has a value of 1 and more than one DCI format related to the downlink PDSCH transmission is detected, the downlink DAI is taken.
  • a value of 1 indicates that the number of component carriers accumulated to the PDSCH transmission that the current component carrier has allocated to the terminal is five.
  • the base station may send the physical downlink shared channel PDSCH and the corresponding physical downlink control channel PDCCH to the terminal according to a certain scheduling algorithm in the subframe n.
  • the terminal detects the subframe n, and the detection process includes:
  • the terminal performs PDCCH detection according to a certain carrier sequence, and sets VZ to be detected by the terminal.
  • the number of component carriers of the PDSCH transmission with the corresponding PDCCH actually detected by the terminal is set.
  • the number of component carriers actually detected by the terminal without PDSCH transmission of the corresponding PDCCH is set to N SPS ;
  • the terminal performs PDSCH detection according to the detected downlink configuration information of the PDCCH, and obtains a PDSCH transmission of the corresponding downlink component carrier corresponding to each codeword stream.
  • ACK/NACK response message wherein, for a PDSCH transmission without a corresponding PDCCH (such as SPS PDSCH transmission), the terminal performs PDSCH detection according to the configuration information of the previous transmission, and obtains a corresponding PDSCH transmission of the component carrier corresponding to each codeword stream. ACK/NACK response message.
  • the four feedback cases are described in detail below.
  • the first type uses the ACK/NACK bundling mode to share the PUSCH feedback on the physical uplink;
  • a correct/error response message is fed back on the physical uplink shared channel PUSCH.
  • the terminal can determine that at least one downlink configuration information is lost, and then generate a NACK signal for all codeword streams (per Each codeword stream corresponds to a NACK signal), and there is
  • the terminal can determine that at least one downlink configuration information is lost, and then generate a NACK signal for each codeword stream (each codeword stream corresponds to a NACK signal).
  • the terminal considers that there is no downlink configuration information loss, and the terminal performs a binding operation on the ACK/NACK response message of each corresponding codeword stream transmitted to the terminal in the downlink subframe n.
  • a bound ACK/NACK response message of 1 bit (corresponding to the case of only one codeword stream) or 2 bits (corresponding to the case of two codeword streams) is obtained.
  • ⁇ (U DAI + N SPS ) A has no detected loss, and the value of N bundled is the same.
  • the selection of the scrambling code sequence for scrambling the encoded ACK/NACK information is used for differentiating the base station side detection, and the UE feedback is caused by the downlink configuration information loss. NACK and the case where the UE feeds back NACK due to an error in PDSCH detection. The base station can be informed of the specific reason for the terminal to feed back the NACK.
  • the ACK/NACK bundling mode is used to control the PUCCH feedback on the physical uplink control channel
  • the terminal does not have a physical uplink shared channel PUSCH to transmit on the subframe n+K, the correct/error response message ACK/NACK is fed back on the physical uplink control channel PUCCH.
  • the terminal determines that at least one downlink configuration information is lost. Since the UE detects that the downlink configuration information is lost, the UE does not send any signal on the PUCCH (in this case, the state of the UE is called DTX, discontinuous transmission), and the base station detects and detects the predetermined PUCCH. It is possible to judge that the configuration information of the terminal has been lost without signaling. This is because the base station does not have the same detection result for sending ACK, transmitting NACK, and not transmitting any signal.
  • the terminal will be sent in downlink subframe n of the terminal ⁇ + w sra independently PDSCH transmission corresponding ACK / NACKs for each codeword stream binding operation, to obtain a 1-bit (corresponding to the case of only one codeword stream) or 2 bits (corresponding to two codewords) The ACK/NACK response message after the binding)
  • the ACK/NACK multiplexing mode is used to share the PUSCH feedback on the physical uplink
  • the terminal has a physical uplink shared channel PUSCH to transmit on the subframe n+K, the correct/error response message ACK/NACK is fed back on the physical uplink shared channel PUSCH.
  • the ACK/NACK response message corresponding to each codeword stream of the PDSCH transmission demodulated according to the PDCCH on the downlink component carrier i first performs a binding operation between the codeword streams to obtain a bound ACK/NACK response message. , mapped to the 4th H of the bits, where 4 H represents the value of the DAI field in the DCI associated with the PDCCH downlink transmission.
  • the ACK/NACK response message corresponding to each codeword stream transmitted by the SPS PDSCH without the PDCCH is first bound between the codeword streams.
  • the operation will map to the last N SPS bits in the bits in a certain order.
  • M is the downlink configured for the UE.
  • the ACK/NACK response message corresponding to each codeword stream of the PDSCH transmission on the downlink component carrier i performs a binding operation between the codeword streams to obtain a bound ACK/NACK response message.
  • the corresponding ACK/NACK feedback bit is set to NACK.
  • the fourth type adopts ACK/NACK multiplexing mode to control PUCCH feedback on the physical uplink control channel
  • the number of downlink component carriers in the downlink component carrier set is configured for the UE.
  • the ACK/NACK response message corresponding to each codeword stream transmitted by the PDSCH of each downlink component carrier is respectively subjected to a binding operation between the codeword streams to obtain M bound ACK/NACK response messages.
  • the corresponding feedback state is DTX, and then according to the relationship between the preset feedback state and the available PUCCH channel and b(0)b(l), Select an available PUCCH channel and use format lb to send b(0)b(l). This method is also called channel selection.
  • the value of K will be sent only one of the component carrier sets according to the timing relationship of the downlink HARQ.
  • the present invention provides a complete ACK/NACK feedback scheme, which is applied to a system using carrier aggregation technology, and implements ACK/NACK transmission in PUB and PUCCH in bundling or multiplexing mode.
  • Embodiment 1 The correct/error response message (ACK/NACK) is fed back on the physical uplink shared channel PUSCH in the bundling mode.
  • ACK/NACK The correct/error response message
  • Embodiment 1-1 As shown in FIG. 1, the downlink component carrier set configured by the base station to the terminal is S,
  • the component carrier for PDSCH transmission of a terminal UE is ⁇ DLCCo'DLCC DLCC, according to the first feedback mode,
  • the DAI field of the PDCCH takes a value of 3 after the present invention is used.
  • the ACK/NACK feedback mode of the terminal is pre-configured by the base station as bundling.
  • the terminal obtains during the detection process:
  • VD, AI 3 J , V y D u A lj I 3 J , 1 u 1 , DAI 3, N SPS 0
  • the terminal Since the terminal detects that there is a PDCCH related to PUSCH transmission on the subframe n, the ACK/NACK information to be fed back by the terminal on the subframe n+K is to be transmitted on the PUSCH.
  • the terminal For transport block #0, the terminal will be bound to a bit information b(0) according to the detection result of the PDSCH on carriers 0, 1 and 3.
  • the terminal will be bound to another bit information b(l) according to the detection result of the PDSCH on carriers 0, 3.
  • the ACK/NACK feedback information sent on the PUSCH is b(0)b(l), and b(0)b(l) is encoded, scrambled, modulated, and mapped to the agreed resource unit (RE), and PUSCH is sent out.
  • the choice of scrambling code depends on the value of w bmdl .
  • Embodiment 1-2 As shown in FIG. 2, the downlink component carrier set configured by the base station to the terminal is S,
  • the component carrier that is scheduled to transmit PDSCH to a terminal UE in the sub-interface ⁇ is WLCC ⁇ DLC ⁇ DLCC, according to the first feedback mode, 2,
  • the DAI field of the PDCCH takes a value of 3 after the present invention is used.
  • the ACK/NACK feedback mode of the terminal is pre-configured by the base station as bundling.
  • the terminal obtains during the detection process:
  • the terminal Since the terminal detects that there is a PDCCH related to PUSCH transmission on the subframe n, the ACK/NACK information to be fed back by the terminal on the subframe n+K is to be transmitted on the PUSCH.
  • the feedback bits b(0)b(l) on both transport blocks (#0, #1) will be set to NACK; finally the ACK/NACK feedback information sent on the PUSCH is b(0)b(l ), b(0)b(l) is encoded, scrambled, modulated, mapped to the agreed resource unit (RE), and sent out with the PUSCH.
  • the choice of scrambling code depends on the value of w bmdl .
  • the two-bit feedback information b(0)b(l) obtained in the embodiment 1-1 is NACK according to the PDSCH detection result, the b(0)b fed back in Embodiment 1-1 and Embodiment 1-2 (l)
  • the information is the same, both are NACK, but the reasons for the two are different.
  • Embodiment 1-1 is because the PDSCH is not correctly detected, and Embodiment 1-2 is due to the loss of downlink configuration information of a certain downlink component carrier, and thus, by the bit encoded by b(0)b(l) During the scrambling process, different scrambling codes are selected to distinguish between the two cases.
  • Embodiment 1-3 As shown in FIG. 1, the configuration on the base station side is basically the same as that in Embodiment 1-1 except that the base station does not transmit the PDCCH related to PUSCH transmission on the current subframe n.
  • the terminal obtains during the detection process:
  • the terminal has a PUSCH to be transmitted on the subframe n+K, but the configuration information of the PUSCH is not obtained on the subframe n, and the corresponding situation is generally SPS PUSCH transmission.
  • the terminal For transport block #0, the terminal will be bound to a bit information b(0) according to the detection result of the PDSCH on carriers 0, 1 and 3.
  • the terminal will be bound to another bit information b(l) according to the detection result of the PDSCH on carriers 0, 3.
  • the ACK/NACK feedback information sent on the PUSCH is b(0)b(l), and b(0)b(l) is encoded, scrambled, modulated, and mapped to the agreed resource unit (RE), and PUSCH is sent out.
  • the choice of scrambling code depends on the value of w bmdl .
  • Embodiment 1-4 as shown in Fig. 2, the configuration on the base station side is the same as that in Embodiment 1-3.
  • the terminal obtains during the detection process:
  • the feedback bits b(0)b(l) on both transport blocks will be set to NACK; finally the ACK/NACK feedback information sent on PUSCH is b(0)b(l), b(0)b (1)
  • the choice of scrambling code depends on the value of w bmdM .
  • Embodiment 1-3 is due to the PDSCH not being correctly detected.
  • the downlink configuration information of a certain downlink component carrier is lost, and therefore, different scrambling codes are selected by scrambling the bit encoded by b(0)b(l). Distinguish between these two situations.
  • Embodiment 2 ACK/ACK is in the multiplexing mode and is fed back on the PUSCH.
  • Embodiment 2-1 As shown in Fig. 3, the configuration on the base station side is basically the same as that in Embodiment 1-1 except that the ACK/NACK configuration of the terminal is in the multiplexing mode.
  • the base station is configured to give the terminal the next component of the carrier set to S,
  • the component carrier that is scheduled to transmit PDSCH to a terminal UE in the sub-interface ⁇ is WLCC ⁇ DLC ⁇ DLCC, according to the first feedback mode,
  • the DAI field of the PDCCH takes a value of 3 after the present invention is used.
  • the ACK/NACK of the terminal is configured as the multiplexing mode.
  • the terminal obtains during the detection process:
  • the terminal Since the terminal detects that there is a PDCCH related to PUSCH transmission on the subframe n, the terminal The ACK/NACK information to be fed back on the subframe n+K will be transmitted on the PUSCH.
  • the DAI fields of the PDCCH corresponding to the PDSCHs of the downlink component carriers #0, #1, and #3 are 1, 2, 3, respectively, and therefore the ACK/NACK response messages of the PDSCH transmission of the downlink component carriers #0, #1, #3 are passed.
  • the corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2) ⁇ obtained after the bundling operation between codeword streams will be mapped to the first, second and third of the 3 bits respectively. Bit.
  • the terminal Since there is no SPS PDSCH transmission in the subframe n, the terminal finally feeds back ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2) ⁇ with a total of 3 bits of information. After the 3 bits of information are coded and modulated, the mapping is good. On the resource unit (RE), it is sent out with the PUSCH.
  • RE resource unit
  • Embodiment 2-2 As shown in Fig. 4, the configuration on the base station side is basically the same as that in Embodiment 2-1 except that there is SPS PDSCH transmission of the UE on component carrier #2.
  • the terminal obtains during the detection process:
  • the DAI fields of the PDCCH corresponding to the PDSCHs of the downlink component carriers #0, #1, #3 are 1, 2, 3 respectively, and therefore the ACK/NACK response messages of the PDSCH transmission of the downlink component carriers #0, #1, #3 are passed.
  • the corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2) ⁇ obtained after the bundling operation between codeword streams will be mapped to the first, second and third of the 4 bits respectively. Bit.
  • the ACK/NACK response message corresponding to the SPS PDSCH transmission passes the bundling between the codeword streams, and the corresponding ACK/NACK response message HARQ_ACK(3) Will be mapped to the last bit of these 4 bits, together with ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2) ⁇ , and finally get ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK (3) ⁇ a total of 4 bit letters
  • the 4-bit information is mapped to the agreed resource unit (RE) and transmitted together with the PUSCH.
  • RE agreed resource unit
  • Embodiment 2-3 As shown in FIG. 5, the configuration on the base station side is the same as that in Embodiment 2-1.
  • the terminal does not correctly receive the PDSCH corresponding to component carrier #1.
  • the terminal gets during the detection process:
  • the DAI fields of the PDCCH corresponding to the PDSCHs of the downlink component carriers #0, #3 are 1, 3 respectively, and therefore the ACK/NACK response message of the PDSCH transmission of the downlink component carriers #0, #3 passes the bundling operation between the codeword streams.
  • the resulting corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(2) ⁇ will be mapped to the 1st and 3rd bits of the 3 bits, respectively.
  • the terminal can determine that the downlink configuration information of a downlink component carrier is lost, and according to the DAI information of the component carriers #0 and #3, the terminal can determine the downlink component carrier #1 or #2.
  • the PDCCH corresponding to the PDSCH transmission is lost, and the specific downlink component carrier terminal cannot be known.
  • the terminal only needs to set the feedback information of HARQ_ACK(1) to NACK, and the terminal will eventually feed back ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2) ⁇ has a total of 3 bits of information. After the 3 bits of information are coded and modulated, they are mapped to a reserved resource unit (RE) and transmitted together with the PUSCH.
  • RE reserved resource unit
  • the base station side detects that the information corresponding to the HARQ_ACK(1) is NACK, it can be determined that the downlink component carrier #1 has a downlink configuration information loss or a PDSCH detection error.
  • Embodiment 2-4 As shown in FIG. 6, the configuration on the base station side is the same as that in Embodiment 2-2.
  • the terminal obtains during the detection process:
  • the DAI fields of the PDCCH corresponding to the PDSCHs of the downlink component carriers #0 and #3 are 1, 3 respectively, and therefore the ACK/NACK response message of the PDSCH transmission of the downlink component carriers #0, #3 passes the bundling operation between the codeword streams.
  • the resulting corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(2) ⁇ will be mapped to the 1st and 3rd bits of the 3 bits, respectively.
  • the ACK/NACK response message corresponding to the SPS PDSCH transmission passes the bundling between the codeword streams, and the corresponding ACK/NACK response message HARQ_ACK(3) Will map to the last of these 4 bits.
  • the terminal can determine that the downlink configuration information of a certain downlink component carrier is lost, and according to the DAI information of the component carriers #0 and #3, and the terminal knows that there is SPS PDSCH transmission on the downlink component carrier #2, because ⁇ U DAI + N SPS
  • the terminal may determine that the PDCCH corresponding to the PDSCH transmission on the downlink component carrier #1 is lost.
  • the terminal sets the feedback information of HARQ_ACK(l) to NACK, and finally gets
  • RE reserved resource unit
  • the base station side detects that the information corresponding to the HARQ_ACK(1) is NACK, it can be determined that the downlink component carrier #1 has a downlink configuration information loss or a PDSCH detection error.
  • Embodiment 2-5 As shown in FIG. 7, the configuration on the base station side is basically the same as that in Embodiment 2-1 except that the base station does not transmit the PDCCH related to the PUSCH transmission on the current subframe n.
  • the terminal obtains during the detection process:
  • the terminal has a PUSCH to be transmitted on the subframe n+K, but the configuration information of the PUSCH is not obtained on the subframe ⁇ , and the corresponding situation is generally SPS PUSCH transmission.
  • each downlink component carrier corresponds to 1 bit of ACK/NACK feedback information (that is, regardless of whether or not the PDSCH transmission is detected on the component carrier, the corresponding ACK/NACK is fed back, and if the PDSCH transmission is not detected, the corresponding The feedback bit is set to NACK), the number of the carrier component is sequentially corresponding to the 4-bit information of the final feedback, and the ACK/NACK response message of the PDSCH transmission of the downlink component carriers #0, #1, #3 passes the bundling operation between the codeword streams.
  • the corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(3) ⁇ obtained later will be mapped to the 1st, 2nd, and 4th bits of the 4 bits, respectively.
  • the terminal Since the terminal does not detect the PDSCH transmission on the downlink component carrier #2, the ACK/NACK feedback bit HARQ_ACK(2) corresponding to the component carrier #2 will be set to NACK. In addition, there is no SPS PDSCH transmission in the subframe n, therefore, the terminal finally feeds back ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK(3) ⁇ with 4 bits of information, and the 4 bits of information are passed. After the coded modulation, it is mapped to the agreed resource unit (RE) and sent out together with the PUSCH.
  • RE agreed resource unit
  • Embodiment 2-6 As shown in Fig. 8, the configuration on the base station side is basically the same as that in Embodiment 2-2 except that the base station does not transmit the PDCCH related to the PUSCH transmission on the current subframe n.
  • the terminal obtains during the detection process:
  • the terminal has a PUSCH to be transmitted on the subframe n+K, but the configuration information of the PUSCH is not obtained on the subframe n, and the corresponding situation is generally SPS PUSCH transmission.
  • the wave corresponds to 1 bit of ACK/NACK feedback information (that is, regardless of whether or not the PDSCH transmission is detected on the component carrier, the corresponding ACK/NACK is fed back, and if the PDSCH transmission is not detected, the corresponding feedback bit is set to NACK.
  • the number of the carrier component corresponds to the 4-bit information of the final feedback, and the ACK/NACK response message of the PDSCH transmission of the downlink component carriers #0, #1, #3 passes the corresponding ACK obtained after the bundling operation between the codeword streams.
  • the /NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(3) ⁇ will be sequentially mapped to the 1st, 2nd, and 4th bits of the 4 bits.
  • the terminal maps the corresponding ACK/NACK feedback information HARQ_ACK(2) to the 3rd bit of the 4 bits, and the terminal finally feeds back ⁇ HARQ_ACK.
  • RE agreed resource unit
  • Embodiment 2-7 As shown in Fig. 9, the configuration on the base station side is the same as that in Embodiment 2-3 except that the base station does not transmit the PDCCH related to PUSCH transmission on the current subframe n.
  • the terminal obtains during the detection process:
  • the terminal has a PUSCH to be transmitted in the subframe n+K, but the configuration information of the PUSCH is not obtained in the subframe n, and the corresponding situation is generally SPS PUSCH transmission.
  • each downlink component carrier corresponds to 1 bit of ACK/NACK feedback information (that is, regardless of whether or not the PDSCH transmission is detected on the component carrier, the corresponding ACK/NACK is fed back, and if the PDSCH transmission is not detected, the corresponding The feedback bit is set to NACK), the number of the carrier component is sequentially corresponding to the 4-bit information of the final feedback, and the ACK/NACK response message of the PDSCH transmission of the downlink component carrier #0, #3 is obtained by the bundling operation between the codeword streams.
  • the corresponding ACK/NACK response message ⁇ HARQ ACK(O), HARQ_ACK(3) ⁇ will be mapped to the 1st and 4th bits of the 4 bits, respectively.
  • the ACK/NACK feedback bit HARQ_ACK(2) corresponding to wave #2 will be set to NACK.
  • the terminal since the terminal does not correctly receive the PDCCH corresponding to the PDSCH on the component carrier #1, the terminal cannot demodulate the PDSCH on the component carrier #1, and therefore, the ACK/NACK feedback bit corresponding to the component carrier #1 HARQ_ACK(l) will also be set to NACK.
  • the terminal finally feeds back ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK(3) ⁇ with 4 bits of information, and the 4 bits of information are coded and modulated. After that, it is mapped to the agreed resource unit (RE) and sent out together with the PUSCH.
  • RE agreed resource unit
  • Embodiment 2-8 As shown in Fig. 10, the configuration on the base station side is the same as that in Embodiment 2-4 except that the base station does not transmit the PDCCH related to PUSCH transmission on the current subframe n.
  • the terminal obtains during the detection process:
  • the terminal has a PUSCH to be transmitted in the subframe n+K, but the configuration information of the PUSCH is not obtained in the subframe n, and the corresponding situation is generally SPS PUSCH transmission.
  • each downlink component carrier corresponds to 1 bit of ACK/NACK feedback information (that is, regardless of whether or not the PDSCH transmission is detected on the component carrier, the corresponding ACK/NACK is fed back, and if the PDSCH transmission is not detected, the corresponding The feedback bit is set to NACK), the number of the carrier component is sequentially corresponding to the 4-bit information of the final feedback, and the ACK/NACK response message of the PDSCH transmission of the downlink component carrier #0, #3 is obtained by the bundling operation between the codeword streams.
  • the corresponding ACK/NACK response message ⁇ HARQ ACK(O), HARQ_ACK(3) ⁇ will be mapped to the 1st and 4th bits of the 4 bits, respectively.
  • the terminal Since the terminal does not correctly receive the PDCCH corresponding to the PDSCH on the component carrier #1, the terminal cannot demodulate the PDSCH on the component carrier #1, and therefore, the ACK/NACK feedback bit HARQ corresponding to the component carrier #1— ACK(l) will also be set to NACK.
  • the terminal maps the corresponding ACK/NACK feedback information HARQ_ACK(2) to the third bit of the 4 bits, and the terminal finally Feedback ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK(3) ⁇ A total of 4 bits of information, which are encoded and modulated and mapped to the agreed resources.
  • the unit (RE) it is sent out together with the PUSCH.
  • the corresponding feedback bits are all set to NACK.
  • the downlink component carrier set configured by the base station to the terminal is S.
  • the component carrier that schedules a PDSCH transmission for a certain UE on the subframe n is ⁇ DLCCo'DLC 'DLC 'DLC 'DLCCJ , then after using the present invention,
  • the base station transmits a PDCCH related to the PUSCH transmission on a certain downlink component carrier.
  • the DAI field of the PDCCH has a value of 1.
  • the ACK/NACK feedback mode of the terminal is used for multiplexing.
  • the terminal obtains during the detection process:
  • the DAI fields of the PDCCH corresponding to the PDSCHs of the downlink component carriers #0, #1, #2, #3 are 1, 2, 3, 4, respectively, and therefore the PDSCHs of the downlink component carriers #0, #1, #2, #3
  • the corresponding ACK/NACK response message ⁇ HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK(3) ⁇ obtained by the transmitted ACK/NACK response message after the bundling operation between the codeword streams will be separately mapped. To the 5th, 1st, 2nd, 3rd and 4th places.
  • the ACK/NACK response message HARQ_ACK(4) obtained after the bundling operation will be mapped to the 5th bit of the 5-bit feedback information to be finally transmitted.
  • HARQ_ACK(0), HARQ_ACK(1), HARQ_ACK(2), HARQ_ACK(3), HARQ_ACK(4) ⁇ A total of 5 bits of information, which are encoded and modulated and mapped to the agreed resource unit (RE) Up, send out with PUSCH.
  • RE agreed resource unit
  • Embodiment 3 ACK/NACK is in bundling mode and is fed back on PUCCH.
  • Embodiment 3-1 As shown in FIG. 1, the downlink component carrier set configured by the base station to the terminal is S,
  • the ACK/NACK feedback mode of the terminal is configured as bundling
  • the terminal obtains during the detection process:
  • the terminal binds the detection result of the PDSCH on the carrier 0, 2 to another bit information b(l); Then, the PUCCH format lb is used to transmit the bundled ACK/NACK bit information b(0)b(l) on the PUCCH channel resource agreed by both the terminal and the base station.
  • Embodiment 3-2 As shown in Fig. 2, the configuration on the base station side is the same as that in Embodiment 3-1.
  • the terminal does not correctly receive the PDSCH corresponding to component carrier #1.
  • the terminal gets during the detection process:
  • Embodiment 4 ACK/NACK is in the multiplexing mode and is fed back on the PUCCH. As shown in Figure 7, the configuration of the base station side is the same as that of the embodiment 3-1 except that the feedback mode of the ACK/NACK is _ _ for the tedious
  • the ACK/NACK information to be fed back by the terminal on the subframe n+K is to be transmitted on the PUCCH.
  • the binding operation is performed to obtain M binding feedback states ⁇ HARQ_ACK(0), HARQ_ACK(1), ⁇ ., HARQ ACK(Ml) ⁇ , and no corresponding detection is detected on the downlink component carrier(s).
  • the corresponding feedback state is DTX, and then according to the relationship between the preset feedback state and the available PUCCH channel and b(0)b(l), an available PUCCH channel is selected, and format lb is used to send b ( 0) b(l).
  • mapping relationship between the feedback status ⁇ HARQ_ACK(0), HARQ_ACK(1), ⁇ ., HARQ ACK(M-l) ⁇ and the available PUCCH channel and b(0)b(l) is related to the value of M.
  • the multi-carrier system under the large bandwidth of the present invention and the method for transmitting the correct/error response message in the multi-carrier system, can implement the sending of the ACK/NACK response message when the downlink configuration information may be lost in the multi-carrier system. . Further, if the NACK response message is fed back, the terminal may also indicate to the base station the reason why the NACK response occurs when transmitting. There are two ways to use the two channels for feedback, which has good applicability and flexibility.

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Abstract

L'invention porte sur un système à plusieurs porteuses à grande bande passante et sur un procédé d'envoi de messages d'accusé de réception/accusé de réception négatif (ACK/NACK) dans le système à plusieurs porteuses. Dans le système à plusieurs porteuses comprenant une station de base et un terminal, la station de base indique l'indice d'attribution de liaison descendante dans le canal de commande de liaison descendante physique; selon l'indice d'attribution de liaison descendante reçu, le nombre détecté réel de porteuses composantes et les messages ACK/NACK correspondant à chaque flux de mots de code de la porteuse composante de liaison descendante transférés dans le canal partagé de liaison descendante physique (PDSCH) obtenu par la détection de canal partagé de liaison descendante physique, le terminal envoie les messages ACK/NACK conformément au mode de regroupement ou de multiplexage configuré par la station de base dans le canal partagé de liaison montante physique ou le canal de commande de liaison montante physique. Lors de l'envoi des messages d'accusé de réception négatif, la raison qui occasionne les messages d'accusé de réception négatif est envoyée dans le mode de regroupement ou de multiplexage conformément à la configuration par la station de base. Le système et le procédé peuvent envoyer des messages ACK/NACK lorsque les informations de configuration de liaison descendante peuvent être perdues.
PCT/CN2010/074800 2010-01-15 2010-06-30 Système à plusieurs porteuses et procédé d'envoi de messages d'accusé de réception/accusé de réception négatif WO2011085582A1 (fr)

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CN201010003429.8A CN101789851B (zh) 2010-01-15 2010-01-15 一种多载波系统及其正确/错误应答消息的发送方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2606596A2 (fr) * 2010-08-16 2013-06-26 Qualcomm Incorporated Accusé de réception/accusé de réception négatif des transmissions pour le fonctionnement à porteuses multiples avec index d'affectation de liaison descendante
WO2017024528A1 (fr) * 2015-08-11 2017-02-16 华为技术有限公司 Procédé de transmission d'informations de rétroaction, dispositif d'utilisateur, et dispositif d'accès
CN106559893A (zh) * 2015-09-25 2017-04-05 中国移动通信集团公司 一种下行调度指示的方法、装置、基站及终端

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2675232B1 (fr) * 2009-03-12 2019-01-16 Interdigital Patent Holdings, Inc. Procédé et appareil pour sélectionner et resélectionner une porteuse primaire de liaison montante
CN102347823B (zh) * 2010-07-30 2014-06-04 电信科学技术研究院 应答信息的合并反馈及其指示方法、装置
CN101924624B (zh) * 2010-08-16 2015-09-16 中兴通讯股份有限公司 正确错误应答消息在物理上行控制信道上的发送方法及终端
CN101924616A (zh) * 2010-08-16 2010-12-22 中兴通讯股份有限公司 正确错误应答在物理上行控制信道上的反馈方法及系统
CN102378373A (zh) * 2010-08-17 2012-03-14 电信科学技术研究院 一种控制信道传输和资源确定方法、基站及终端
CN101958775B (zh) * 2010-09-30 2015-05-20 中兴通讯股份有限公司 确认信息的发送方法及用户设备
CN101951684B (zh) * 2010-09-30 2015-08-12 中兴通讯股份有限公司 一种确认信息的发送方法及用户终端
EP2624494B1 (fr) * 2010-09-30 2021-06-30 LG Electronics Inc. Procédé et appareil pour la transmission de données de contrôle
CN103155634A (zh) * 2010-10-19 2013-06-12 富士通株式会社 传输上行响应信号的方法、终端设备和基站
EP2642682B1 (fr) * 2010-11-18 2021-07-28 LG Electronics Inc. Procédé de transmission d'informations de commande et dispositif pour ce procédé
EP2648355B1 (fr) * 2010-12-02 2019-03-27 LG Electronics Inc. Procédé et dispositif de transmission de ack/nack dans système de communication sans fil duplex à répartition dans le temps (tdd)
JP4969682B2 (ja) * 2010-12-09 2012-07-04 シャープ株式会社 移動局装置、通信システム、通信方法および集積回路
KR101577510B1 (ko) * 2011-01-02 2015-12-14 엘지전자 주식회사 Tdd 기반 무선 통신 시스템에서 ack/nack 전송 방법 및 장치
KR101880460B1 (ko) * 2011-01-10 2018-07-20 엘지전자 주식회사 무선통신 시스템에서의 제어정보의 전송 방법 및 장치
CN102111802B (zh) * 2011-02-28 2013-12-04 上海华为技术有限公司 测量传输错误信息方法和网络设备
US8917603B2 (en) * 2011-05-12 2014-12-23 Lg Electronics Inc. Method for transmitting control information and apparatus therefor
CN102158326B (zh) * 2011-05-20 2014-05-14 电信科学技术研究院 Ack/nack反馈信息的传输方法和设备
CN107135052B (zh) * 2011-05-31 2021-02-02 北京三星通信技术研究有限公司 一种发送harq-ack反馈信息的方法
CN102223215B (zh) * 2011-06-23 2016-09-21 电信科学技术研究院 Ack/nack的传输方法、接收方法及其装置
CN103828273B (zh) * 2011-09-23 2017-01-18 Lg电子株式会社 用于发送控制信息的方法及装置
CN103188062B (zh) * 2011-12-31 2018-08-17 中兴通讯股份有限公司 混合自动重传请求应答信息发送方法及装置
CN102790665A (zh) * 2012-03-13 2012-11-21 中兴通讯股份有限公司 Ack/nack信息的发送系统、发送方法及资源配置方法和基站
CN109412775B (zh) * 2012-06-27 2021-08-03 北京三星通信技术研究有限公司 一种发送harq-ack反馈信息的方法
CN103687039B (zh) * 2012-09-26 2017-02-08 普天信息技术研究院有限公司 一种半静态调度标识加扰的pdcch授权确认的方法
PL2901793T3 (pl) * 2012-09-27 2017-05-31 Telefonaktiebolaget Lm Ericsson (Publ) Sposoby i systemy do przydzielania zasobu TDD PUCCH HARQ dla ulepszonego fizycznego kanału sterującego downlinku (EPDCCH)
WO2014180001A1 (fr) * 2013-05-10 2014-11-13 Telefonaktiebolaget L M Ericsson (Publ) Procedes, equipement utilisateur et nœud de reseau radio pour un groupage de ack/nack harq sur pusch dans un systeme tdd dynamique
WO2015039313A1 (fr) * 2013-09-18 2015-03-26 华为技术有限公司 Procédé, équipement d'utilisateur et station de base pour émission d'accusé de réception de demande de répétition automatique hybride
WO2015042835A1 (fr) 2013-09-26 2015-04-02 Qualcomm Incorporated Procédé et appareil pour une utilisation efficace de bits dai pour une eimta en lte
CN109547171B (zh) * 2013-09-26 2021-06-22 高通股份有限公司 用于针对LTE中的eIMTA有效使用DAI比特的方法和装置
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ES2794399T3 (es) * 2015-08-14 2020-11-18 Huawei Tech Co Ltd Método de transmisión y recepción de información, y dispositivo
CN106533636B (zh) * 2015-09-10 2019-11-12 普天信息技术有限公司 基于载波聚合的混合自动重传请求信息反馈方法、系统
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
US10581559B2 (en) * 2016-07-18 2020-03-03 Sharp Kabushiki Kaisha User Equipment, base stations and methods
CN110138514B (zh) * 2018-02-08 2020-10-20 电信科学技术研究院有限公司 一种进行混合自动重传请求反馈的方法和终端
CN111525978B (zh) * 2019-02-01 2022-11-08 中兴通讯股份有限公司 索引信息的发送方法及装置、存储介质、电子装置
CN112243297B (zh) * 2019-07-18 2023-11-17 财团法人资讯工业策进会 用于移动通信系统的用户装置及基站
CN115399025A (zh) * 2020-04-27 2022-11-25 Oppo广东移动通信有限公司 无线通信方法、终端设备和网络设备
CN113938244B (zh) * 2020-06-29 2024-02-06 海能达通信股份有限公司 一种通信应答信号的传输方法、基站及终端
CN113938243B (zh) * 2020-06-29 2023-12-19 海能达通信股份有限公司 通信应答信号的传输方法、终端及基站

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101478379A (zh) * 2009-01-20 2009-07-08 中兴通讯股份有限公司 物理上行控制信道的发送方法及用户设备
CN101505498A (zh) * 2009-03-17 2009-08-12 中兴通讯股份有限公司 下行控制信息发送方法及相关系统、装置
CN101547077A (zh) * 2008-03-24 2009-09-30 鼎桥通信技术有限公司 一种传输ack/nack信息的方法
CN101594211A (zh) * 2009-06-19 2009-12-02 中兴通讯股份有限公司 大带宽的多载波系统中发送正确/错误应答消息的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100905385B1 (ko) * 2008-03-16 2009-06-30 엘지전자 주식회사 무선통신 시스템에서 제어신호의 효율적인 전송방법
CN101409922B (zh) * 2008-10-20 2012-05-09 中兴通讯股份有限公司 一种断续发射的检测方法及相应的下行分配指示方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101547077A (zh) * 2008-03-24 2009-09-30 鼎桥通信技术有限公司 一种传输ack/nack信息的方法
CN101478379A (zh) * 2009-01-20 2009-07-08 中兴通讯股份有限公司 物理上行控制信道的发送方法及用户设备
CN101505498A (zh) * 2009-03-17 2009-08-12 中兴通讯股份有限公司 下行控制信息发送方法及相关系统、装置
CN101594211A (zh) * 2009-06-19 2009-12-02 中兴通讯股份有限公司 大带宽的多载波系统中发送正确/错误应答消息的方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2606596A2 (fr) * 2010-08-16 2013-06-26 Qualcomm Incorporated Accusé de réception/accusé de réception négatif des transmissions pour le fonctionnement à porteuses multiples avec index d'affectation de liaison descendante
EP3496316A1 (fr) * 2010-08-16 2019-06-12 Qualcomm Incorporated Transmission ack/nack pour fonctionnement à porteuses multiples avec indice d'attribution de liaison descendante
WO2017024528A1 (fr) * 2015-08-11 2017-02-16 华为技术有限公司 Procédé de transmission d'informations de rétroaction, dispositif d'utilisateur, et dispositif d'accès
CN107005372A (zh) * 2015-08-11 2017-08-01 华为技术有限公司 一种传输反馈信息的方法、用户设备和接入设备
CN107005372B (zh) * 2015-08-11 2020-09-08 华为技术有限公司 一种传输反馈信息的方法、用户设备和接入设备
CN106559893A (zh) * 2015-09-25 2017-04-05 中国移动通信集团公司 一种下行调度指示的方法、装置、基站及终端
CN106559893B (zh) * 2015-09-25 2020-05-01 中国移动通信集团公司 一种下行调度指示的方法、装置、基站及终端

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