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WO2012088877A1 - Procédé d'envoi d'informations d'accusé de réception et équipement utilisateur - Google Patents

Procédé d'envoi d'informations d'accusé de réception et équipement utilisateur Download PDF

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Publication number
WO2012088877A1
WO2012088877A1 PCT/CN2011/077494 CN2011077494W WO2012088877A1 WO 2012088877 A1 WO2012088877 A1 WO 2012088877A1 CN 2011077494 W CN2011077494 W CN 2011077494W WO 2012088877 A1 WO2012088877 A1 WO 2012088877A1
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Prior art keywords
ack
nack response
response information
information
nack
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PCT/CN2011/077494
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English (en)
Chinese (zh)
Inventor
杨维维
戴博
梁春丽
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ZTE Corp
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ZTE Corp
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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
    • H04L1/1614—Details of the supervisory signal using bitmaps

Definitions

  • the present invention relates to the field of mobile wireless communications, and in particular to a method for transmitting response information and a user equipment (User Equipment, UE) in a wireless communication system.
  • UE User Equipment
  • the Radio Frame in the Long Term Evolution (LTE) system includes a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode frame structure.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • a 10 msec (ms) radio frame consists of twenty slots of length 0.5 ms and numbers 0-19, slots 2i and 2i. +l constitutes a subframe (frame) i of length 1 ms (where 0 ⁇ i ⁇ 9).
  • a 10 ms radio frame is composed of two half frames of 5 ms length, and one subframe includes five subframes of length 1 ms, and subframes.
  • i is defined as a combination of two time slots 2i and 2i+1 that are 0.5 ms long (where 0 ⁇ i ⁇ 9).
  • one slot contains 7 symbols, and when Extended Cyclic Prefix (Extended CP) is used, one slot contains 6 symbols.
  • LTE TDD supports 5ms and 10ms uplink and downlink switching cycles. If the downlink to uplink transition point period is 5ms, the special subframe will exist in two fields; if the downlink to uplink transition point period is 10ms, the special subframe exists only in the first field; subframe #0 and sub Frame #5 and DwPTS are always used for downlink transmission; UpPTS and subframes immediately following the special subframe are dedicated to uplink transmission.
  • the user terminal since the uplink and downlink subframes are corresponding, when the physical downlink shared channel (PDSCH) contains only one codeword stream, the user terminal needs to feed back a 1-bit ACK. /NACK response information, when the PDSCH includes two codeword streams, the UE needs to feed back 2 bits of ACK/NACK response information, when the UE does not have a PUSCH (Physical Uplink Share Channel) to transmit in the current subframe.
  • PUSCH Physical Uplink Share Channel
  • the UE will transmit the 1-bit or 2-bit ACK/NACK response information in the format la/lb on the PUCCH (Physical Uplink Control Channel); and when the UE has the PUSCH transmission in the current subframe, The UE maps the 1-bit or 2-bit information to a corresponding bit through a certain ACK/NACK state, and performs channel coding, scrambling, and modulation, and then multiplexes with the data, and then transmits the signal on the PUSCH.
  • PUCCH Physical Uplink Control Channel
  • the ACK/NACK response information corresponding to the multiple downlink subframes needs to be sent on the PUCCH/PUSCH channel of one uplink subframe, where the uplink
  • the set of downlink subframes corresponding to the subframe constitutes a bundling window.
  • two types of ACK/NACK response information are defined: one is an ACK/NACK bundling method, and the other is ACK/NACK multiplexing method:
  • the high-level configuration of the UE uses bundling or mulitplexing.
  • the basic idea of the ACK/NACK bundling method is to use the ACK of the codeword stream corresponding to each downlink subframe that needs to be fed back in the uplink subframe.
  • the /NACK message performs a time domain bundling to obtain a 1-bit or bit ACK/NACK response message.
  • the UE When the UE does not transmit a PUSCH in the current subframe, the UE will transmit the format la/lb on the PUCCH.
  • the 1-bit or 2-bit ACK/NACK response information when the UE has a PUSCH transmission in the current subframe, the UE transmits the 1-bit or 2-bit information on the PUSCH after a certain channel coding and channel interleaving.
  • the core idea of the multiplexing method is to use different PUCCH channels and different modulation symbols on the channel to indicate different feedback states of the downlink subframes that need to be fed back in the uplink subframe. If there are multiple transport blocks on the downlink subframe, then The ACK/NACK fed back by the plurality of transport blocks of the downlink subframe is logically (bundled) and then channel selected, and then transmitted using PUCCH format lb.
  • the UE When the UE has no PUSCH to transmit in the current subframe, the UE will transmit the multiple ACK/NACK response information in the format lb with channel selection on the PUCCH; when the UE is in the current subframe When there is PUSCH transmission, the UE transmits a plurality of bit information through a certain ACK/NACK state to a corresponding bit, and performs channel coding, channel interleaving, and data multiplexing, and then transmits on the PUSCH.
  • the encoding process when the response information is transmitted on the PUSCH includes: 4.M c (Formula 1)
  • the number of required coding symbols is calculated according to the above (Formula 1); where ⁇ represents the number of bits of the uplink control information to be transmitted; MTM represents the bandwidth of the current subframe for PUSCH transmission, represented by the number of carriers; N s P y : H - initial indicates that the initial PUSCH transmission is used in addition to the Demodulation Reference Signal (DMRS) and the measurement reference signal (Sounding) The number of symbols outside the Reference Signal, SRS); M S P C USCH - initial indicates the bandwidth of the initial PUSCH transmission, expressed in the number of subcarriers; C indicates the corresponding code block after the CRC and the code block are divided by the transport block.
  • DMRS Demodulation Reference Signal
  • SRS Signal
  • M S P C USCH - initial indicates the bandwidth of the initial PUSCH transmission, expressed in the number of subcarriers; C indicates the corresponding code block after the CRC and the code block are divided by the transport block.
  • LTE-A Long Term Evolution Advanced
  • CA Carrier Aggregation
  • the carrier aggregation LTE system bandwidth can be regarded as a component carrier (CC), and each component carrier frequency can also be referred to as a cell (Cell), that is, one spectrum can be aggregated by n component carriers (Cell).
  • CC component carrier
  • Cell component carriers
  • the resources of one R10 UE are composed of n cells (component carriers) in the frequency domain, where one cell is called a primary cell and the other cells are called secondary cells.
  • multiple downlink subframes correspond to one uplink subframe, and each downlink subframe has multiple cells, and each cell may be transmitted by one transport block according to different transmission modes, or may be composed of two transport blocks.
  • PUCCH format 3 when ACK/NACK response information is sent by using formatlb with channel selection, bundling is not used for ACK/NACK response information of 4 bits or less, and ACK/NACK response information of more than 4 bits can be used.
  • the main purpose of the present invention is to provide a method for transmitting ACK/NACK response information on a physical uplink shared channel and a corresponding user terminal, and solving the problem that the ACK/NACK response information cannot be sent on the PUSCH in the carrier aggregation scenario. .
  • FIG. 3 is a flowchart of a method for sending response information according to the present invention.
  • the response information refers to correct or incorrect (ACK/NACK) response information fed back by the UE to the base station, and the main steps are as follows:
  • Step 302 In a scenario of carrier aggregation, the UE acquires an ACK/NACK response information bit sequence that needs to be sent according to related information.
  • Step 304 The UE calculates a number of coded modulation symbols required to transmit a bit sequence of the ACK/NACK response information on the PUSCH.
  • Step 306 The UE sends an ACK/NACK response message on the PUSCH.
  • the ACK/NACK response information bit sequence that the UE needs to send according to the related information in step 302 refers to: the number of downlink component carriers (or cells) configured by the UE according to the base station, the ratio of the uplink and downlink subframes configured, and each downlink configured.
  • the UE acquires a bit sequence of the ACK/NACK response information to be sent according to the feedback mode of the high layer configuration:
  • the ACK/NACK response information bit sequence to be transmitted is determined according to the ACK/NACK information in the mapping table of the channel selection manner;
  • the upper layer configuration sends the ACK/NACK response information in the manner of the format 3, the number of the downlink component carriers (or cells) configured by the UE, the transmission mode configured for each downlink component carrier (or cell), and the proportional relationship between the uplink and downlink subframes
  • the number of ACK/NACK response information bits that can be transmitted at most on the PUSCH is used to determine ACK/NACK response information to be transmitted, and the ACK/NACK response information to be transmitted is mapped into the bit sequence.
  • the component carrier (or cell) according to the pre-codeword stream, the order of the sub-frames, or the sub-frame of the first codeword stream, and then the component The order of the carriers (or cells), mapping the corresponding ACK/NACK response information into the bit sequence;
  • the ACK/NACK bit sequence can be obtained by one of the following methods:
  • Manner 1 When the ACK/NACK response information is mapped to the bit sequence, logically AND operation is performed on all ACK/NACK response information corresponding to the PDSCH of the two codeword streams, and the logical AND The ACK/NACK response information after operation is mapped into the corresponding bit sequence;
  • Manner 2 logically AND the two ACK/NACK response information corresponding to the PDSCH according to a predefined method, until the total number of bits of the ACK/NACK response information to be sent does not exceed M bits, and then the logical AND operation
  • the ACK/NACK response information is mapped into a corresponding bit sequence, wherein the predefined method is one of the following methods:
  • the ACK/NACK response information corresponding to the PDSCH corresponding to the PDSCH of the two codeword streams in all the secondary component carriers (or cells) is logically AND, the total number of bits of the ACK/NACK response information exceeds M bits, And logically ANDing the ACK/NACK response information corresponding to the PDSCH of the 2 codeword streams in the primary component carrier (or cell);
  • M is a fixed value agreed by the base station and the UE, Me ⁇ 20, 21, 22, 23, 24, 25, 26 ⁇
  • mapping the ACK/NACK response information into a bit sequence is one of the following methods:
  • Method 1 Mapping in accordance with a predefined component carrier (or cell), for the same
  • the ACK/NACK response information of a component carrier (or cell) is mapped according to the sequence of subframes or according to the value of the downlink assignment index (DAI) in the downlink grant information (DL assignment), and the ACK/released by the semi-static persistent scheduling is performed.
  • the NACK response information is located at the front or the end of the ACK/NACK response information fed back by the component carrier (or cell) in which it is located;
  • the predefined component carrier (or cell) sequence is a high-level configuration, or the predefined component carrier (or cell) sequence is a component carrier (or cell) index sequence, or the primary component carrier (or cell) is supplemented.
  • Component carrier (or cell) is a high-level configuration, or the predefined component carrier (or cell) sequence is a component carrier (or cell) index sequence, or the primary component carrier (or cell) is supplemented.
  • the number of ACK/NACK response information fed back by each component carrier (or cell) is determined by the configured number of downlink subframes and the transmission mode, or by the configured number of downlink subframes and the transmission mode, and the uplink grant information (UL grant).
  • the value of the downlink allocation index is determined;
  • Method 2 mapping according to the sequence of subframes, and ACK/NACK response information on the same subframe is sequentially mapped according to a predefined component carrier (or cell);
  • the predefined component carrier (or cell) sequence is a high-level configuration, or the predefined component carrier (or cell) sequence is a component carrier (or cell) index sequence, or the primary component carrier (or cell) is supplemented. Component carrier (or cell).
  • the UE when the UE does not detect the PDSCH on the configured corresponding downlink component carrier (or cell), the corresponding response information is set to NACK;
  • the base station configures that a certain codeword stream (transport block) in the two codeword streams (transport blocks) corresponding to the PDSCH is not enabled and the ACK/NACK response information corresponding to the PDSCH is not logically operated, then The response information of the codeword stream corresponding to the unenabled transport block is set to NACK;
  • the base station configures that a certain codeword stream in the two codeword streams (transport blocks) corresponding to the PDSCH is not enabled and sends the ACK/NACK response information corresponding to the PDSCH to perform logical AND operation, the disabling is disabled.
  • the ACK/NACK response information corresponding to the codeword stream (transport block) is set to ACK, or the logical and operation result of the ACK/NACK response information corresponding to the PDSCH is Enable ACK/NACK response information corresponding to the codeword stream (transport block);
  • the method for obtaining the ACK/NACK response information bit sequence to be transmitted is also applicable to transmitting the ACK/NACK response information in the format 3 on the PUCCH;
  • the correct response information (ACK) corresponds to a binary "1”
  • the error response information (NACK) corresponds to a binary "0.”
  • step 304 if the ACK/NACK response information is transmitted on the PUSCH, it is not encoded by the dual Reed-Muller (Dual RM) method, and the ACK/ is transmitted on the PUSCH.
  • the number of coded modulation symbols required for the bit sequence of the NACK response information is set, the number of bits O of the uplink control information to be transmitted is obtained by one of the following methods:
  • O is equal to the length of the bit sequence of the obtained ACK/NACK response information, where is the downlink assignment index in the uplink grant information UL grant, indicating the PDSCH sent by the base station to the UE.
  • the number of subframes, the maximum number of bits of the correct error response message corresponding to the PDSCH on the downlink component carrier (or cell) of the TB table, or 0 indicates that the ACK/NACK response message is logically and operationally fed back.
  • the code is coded by the Dual RM, and the number of coded modulation symbols required for the calculation is jointly calculated, and the number of bits of the uplink control information to be transmitted is calculated. Get it in one of the following ways:
  • the maximum number of ACK/NACK response messages, O max K * TB x , K indicates the number of downlink subframes in the configured uplink-downlink subframe ratio relationship, and the TB table is configured on the downlink component carrier (or cell) of the UE.
  • the maximum number of bits of the correct error response message corresponding to the PDSCH, or O max represents the maximum number of bits of the ACK/NACK response message that has been logically and operationally fed back;
  • the Dual RM is used.
  • the method of encoding is performed, and the number of coded modulation symbols required for calculation is independently calculated.
  • the number of bits O 1 , O 2 of the uplink control information to be transmitted during calculation is obtained by one of the following methods:
  • C ⁇ O 2 is the number of uplink control information bits to be transmitted when independently calculated, and / represents the maximum value of the total number of PDSCHs allocated to the ACK/NACK response information in the two RMs, where N represents Length of the bit sequence of the ACK/NACK response message;
  • N represents the length of the bit sequence of the obtained ACK/NACK response information
  • N , .
  • W or W min ( TB 0 when the UE
  • N indicates the length of the bit sequence of the obtained ACK/NACK response information, and indicates the number of downlink subframes in which the feedback ACK/NACK response message is scheduled in all component carriers (or cells).
  • C max K * 3 ⁇ 4 TB x
  • K represents the number of downlink subframes in the configured uplink-downlink subframe ratio relationship, and the maximum bit of the correct error response message corresponding to the PDSCH configured on the downlink component carrier (or cell) of the TB table a number, or 0, indicating the maximum number of bits of the ACK/NACK response message that has been logically and operationally fed back;
  • O 1 indicates the number of TB/NACK response information corresponding to the TB received by the UE in one Reed-Muller code
  • O 2 indicates that the TB corresponding to the ACK/NACK response information received by the UE is mapped in another Reed - The number in the Muller code.
  • the determining, according to the DAI in the uplink authorization information is that when a plurality of uplink authorization information is sent to the UE, the value of the DAI in the uplink authorization information is the same.
  • the UE sends the ACK/NACK response information on the PUSCH to: the UE encodes the generated ACK/NACK bit sequence according to the corresponding coding manner, and obtains the coded according to the number of the modulated modulation symbols.
  • the sequence is multiplexed with the data by channel interleaving and then transmitted on the PUSCH.
  • a user terminal provided by the present invention includes: an obtaining module, a calculating module, and a sending module, where the acquiring module is configured to acquire a bit sequence of ACK/NACK response information to be sent; and the calculating module is configured to calculate the ACK sent on the PUSCH. /NACK The number of coded modulation symbols required for the bit sequence of the response information; the transmitting module is configured to transmit the ACK/NACK response information on the PUSCH.
  • the foregoing modules are all configured to implement the ACK/NACK response information sending method provided by the present invention, and the specific technical solutions of the foregoing methods may be embodied in the functions of the modules and the interaction relationship between the modules, where No longer.
  • step 304 When the step 304 is not related to the step 302, the order of the two may be interchanged; the method for transmitting the ACK/NACK response information on the physical uplink shared channel according to the present invention effectively solves the carrier aggregation scenario.
  • FIG. 1 is a schematic diagram of a frame structure in a prior art FDD system
  • FIG. 2 is a schematic diagram of a frame structure in a prior art TDD system
  • FIG. 3 is a schematic flow chart of a method for transmitting response information according to the present invention.
  • Embodiment 1 of the present invention is a schematic diagram of Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of determining an ACK/NACK bit sequence according to Embodiment 1 of the present invention
  • FIG. 6 is a schematic diagram of determining an ACK/NACK bit sequence according to Embodiment 2 of the present invention
  • FIG. 7 is a third embodiment of the present invention.
  • FIG. 8 is a schematic diagram of determining an ACK/NACK bit sequence according to Embodiment 4 of Embodiment 2 of the present invention
  • FIG. 9 is a schematic diagram of determining an ACK/NACK bit sequence according to Embodiment 5 of Embodiment 2 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the base station configures 4 downlink component carriers (or cells) ⁇ DL CC#0, DL CC#1, DL CC#2, DL CC#3 ⁇ for the UE, and both need
  • the 2-bit ACK/NACK response information is fed back, and it is assumed that an uplink subframe needs to simultaneously feed back downlink subframes #n #n+1 and #n+2 - ACK/NACK response information of 3 downlink subframes; PUSCH
  • the ACK/NACK response information that can be transmitted at most is 40 bits; the ACK/NACK response information is not encoded by the Dual RM code when transmitted on the PUSCH, and the PUSCH is transmitted according to the UL grant, and corresponds to only one transport block.
  • Step 402 The UE determines the ACK/NACK response information that needs to be fed back according to the number of downlink component carriers (or cells) configured by the base station, the configured uplink-downlink ratio, and the configured transmission mode of each downlink component carrier (or cell).
  • Bit sequence The terminal maps the corresponding ACK/NACK response information to the bit sequence according to the sub-frame of the pre-codeword stream, and then the component carrier (or cell), wherein the length of the bit sequence is 24;
  • Step 404 The UE calculates, according to the related information, the number of coding symbols required to send the ACK/NACK response information bit sequence, and calculates the number of coding symbols, (the value is determined according to the following manner:
  • the UE calculates the required code modulator according to the length of the obtained bit sequence Number of numbers;
  • Step 406 The UE encodes the generated bit sequence of the ACK/NACK response information according to the corresponding coding manner, obtains the encoded sequence according to the number of the modulated modulation symbols, and multiplexes the data by channel interleaving, and then Sent on PUSCH.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • Step 602 The UE according to the number of downlink component carriers (or cells) configured by the base station, the configured uplink-downlink ratio, and the configured transmission mode of each downlink component carrier (or cell). Determining a bit sequence of ACK/NACK response information that needs to be fed back, since the ACK/NACK response information that can be transmitted at the PUSCH is 20 bits; the ACK/NACK bit sequence is obtained according to the following manner;
  • Manner 1 As shown in Figure 5, after logically ANDing the ACK/NACK response information corresponding to all PDSCHs containing 2 codeword streams, the obtained ACK/ is obtained according to the order of the sub-subcarriers (or cells). NACK response information is mapped into the corresponding bit sequence;
  • Manner 2 As shown in FIG. 6, where DL CC#0 is a primary component carrier (or primary cell), and DL CC#l/2/3 is a secondary component carrier (or cell), and the secondary component carrier (or cell) After performing logical AND operation on the ACK/NACK response information corresponding to the PDSCH of the 2 codeword streams, the obtained ACK/NACK response information is mapped to the corresponding bit sequence according to the order of the sub-subframe component carrier (or cell). ;
  • Mode 3 As shown in FIG. 7, it is assumed that DL CC#0 has the highest priority, and DL CC#3 has the lowest priority, because only the PDSCH including 2 codeword streams in the lowest priority DL CC3 needs to be corresponding.
  • the logical AND operation of the ACK/NACK response information can make the information bits not exceed M, so the ACK/NACK response information corresponding to the PDSCH of the two codeword streams in the DL CC#3 is logically operated, according to the first subframe.
  • the sequence of the post-component carrier (or cell) maps the obtained ACK/NACK response information into the corresponding bit sequence;
  • Manner 4 As shown in FIG. 8, it is only necessary to logically AND operate the ACK/NACK response information corresponding to the PDSCH of the 2 codeword streams in all component carriers (or cells) corresponding to the subframe #n. Not more than 20, all the ACK/NACK response information corresponding to the PDSCH including the 2 codeword streams in the subframe #n is logically ANDed, and the obtained ACK/ is obtained in the order of the sub-subframe component carrier (or cell). The NACK response information is mapped into the corresponding bit sequence.
  • Method 5 As shown in FIG.
  • the information bit does not exceed 20, so according to the preamble
  • the order of the post-frame component carriers (or cells) sorts all PDSCHs, in order from back to front.
  • DL CC#3 the ACK/NACK response information corresponding to the PDSCH on the subframe #n+2 is logically ANDed, and the obtained ACK/NACK response information is mapped to the corresponding one in the order of the first subframe after the component carrier (or cell).
  • Step 604 The UE calculates, according to the related information, the number of coding symbols required to send the ACK/NACK response information bit sequence, and calculates the number of coding symbols:
  • the number of coded modulation symbols required for the calculation is jointly calculated, and the value of O can be determined according to one of the following ways:
  • the maximum number of bits of the ACK/NACK response message, O max K* TB x , where K is the number of downlink subframes in the configured uplink-downlink subframe ratio relationship, and the TB table is configured for each downlink component carrier of the UE (or The maximum error number of the correct error response message corresponding to the PDSCH on the cell, or O max indicates the maximum number of bits of the ACK/NACK response message that is fed back through the logical AND operation; if the ACK/NACK response message is transmitted on the PUSCH, the calculation is performed.
  • the number of coded modulation symbols required is calculated independently (the value can be determined according to one of the following ways:
  • C ⁇ O 2 is the number of uplink control information bits to be transmitted when independently calculated, and / represents the maximum value of the total number of PDSCHs allocated to the ACK/NACK response information in the two RMs, where N represents Length of the bit sequence of the ACK/NACK response message;
  • N represents the length of the bit sequence of the obtained ACK/NACK response information
  • N , .
  • W or W min ( TB 0
  • C max K * 3 ⁇ 4 TB x
  • K represents the number of downlink subframes in the configured uplink-downlink subframe ratio relationship, and the maximum bit of the correct error response message corresponding to the PDSCH configured on the downlink component carrier (or cell) of the TB table a number, or 0, indicating the maximum number of bits of the ACK/NACK response message that has been logically and operationally fed back;
  • O 1 indicates that the TB corresponding to the ACK/NACK response information received by the UE is mapped in a Reed - the number in the Muller code; 0 2 indicates the number of TB/NACK response information corresponding to the TB received by the UE in another Reed-Muller code.
  • Step 606 The UE encodes the generated ACK/NACK bit sequence according to a corresponding coding manner, obtains a coded sequence according to the number of coded modulation symbols, and multiplexes the data by channel interleaving, and then transmits the data on the PUSCH. .
  • embodiments of the present invention also provide a user terminal. Since the embodiments described below are for implementing the foregoing method embodiments, the modules in the user terminal are all designed to implement the foregoing method, and the modules in the user terminal can be unambiguously derived from the foregoing method.
  • the present invention is not limited to the embodiments described below, and any apparatus and modules that can implement the above methods should be included in the scope of the present invention. Also, in the following description, the same contents as the foregoing methods are omitted here to save space.
  • a user terminal provided by the present invention includes: an obtaining module, a calculating module, and a sending module, where the acquiring module is configured to acquire a bit sequence of ACK/NACK response information to be sent; and the calculating module is configured to calculate the ACK sent on the PUSCH. /NACK The number of coded modulation symbols required for the bit sequence of the response information; the transmitting module is configured to transmit the ACK/NACK response information on the PUSCH.
  • the foregoing modules are all configured to implement the ACK/NACK response information sending method provided by the present invention, and the specific technical solutions of the foregoing methods may be embodied in the functions of the modules and the interaction relationship between the modules, where No longer.
  • the ACK/NACK response information provided by the present invention is transmitted on a physical uplink shared channel.
  • the UE first acquires a bit sequence of ACK/NACK response information to be transmitted, and then calculates the ACK to be sent on the PUSCH.
  • /NACK The number of coded modulation symbols required for the bit sequence of the response information, and finally the ACK/NACK response information is transmitted on the PUSCH.
  • the invention effectively solves the problem that the ACK/NACK response information is sent on the PUSCH in the carrier aggregation scenario.

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Abstract

L'invention porte sur un procédé d'envoi d'informations d'accusé de réception (ACK) et sur un équipement utilisateur, destinés à résoudre le problème selon lequel des informations d'accusé de réception ACK/NACK ne peuvent pas être transmises sur un PUSCH dans un scénario d'agrégation de porteuses. Selon la présente invention, dans le scénario d'agrégation de porteuses, un UE acquiert en premier lieu une séquence de bits des informations d'accusé de réception ACK/NACK à transmettre, puis calcule le nombre de symboles de modulation de code requis pour transmettre la séquence de bits des informations d'accusé de réception ACK/NACK sur le PUSCH, et envoie finalement les informations d'accusé de réception ACK/NACK sur le PUSCH. La présente invention résout efficacement le problème selon lequel les informations d'accusé de réception ACK/NACK ne peuvent pas être transmises sur le PUSCH dans le scénario d'agrégation de porteuses.
PCT/CN2011/077494 2010-12-28 2011-07-22 Procédé d'envoi d'informations d'accusé de réception et équipement utilisateur Ceased WO2012088877A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010611641.2 2010-12-28
CN201010611641.2A CN102064921B (zh) 2010-12-28 2010-12-28 一种应答信息的发送方法及用户终端

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