WO2012016516A1 - 基于多输入多输出系统的上行控制信息处理方法和装置及其传输方法 - Google Patents

基于多输入多输出系统的上行控制信息处理方法和装置及其传输方法 Download PDF

Info

Publication number
WO2012016516A1
WO2012016516A1 PCT/CN2011/077911 CN2011077911W WO2012016516A1 WO 2012016516 A1 WO2012016516 A1 WO 2012016516A1 CN 2011077911 W CN2011077911 W CN 2011077911W WO 2012016516 A1 WO2012016516 A1 WO 2012016516A1
Authority
WO
WIPO (PCT)
Prior art keywords
bits
ack
source
nack
source bit
Prior art date
Application number
PCT/CN2011/077911
Other languages
English (en)
French (fr)
Inventor
陈文洪
林亚男
高雪娟
Original Assignee
电信科学技术研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to EP11814099.5A priority Critical patent/EP2602950A4/en
Priority to KR1020127031270A priority patent/KR101447071B1/ko
Priority to EP23214351.1A priority patent/EP4307586A3/en
Priority to JP2013522092A priority patent/JP5775159B2/ja
Priority to US13/703,628 priority patent/US9210696B2/en
Publication of WO2012016516A1 publication Critical patent/WO2012016516A1/zh
Priority to US14/930,493 priority patent/US9532345B2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072Error control for data other than payload data, e.g. control data
    • H04L1/0073Special arrangements for feedback channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0623Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0645Variable feedback
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1858Transmission or retransmission of more than one copy of acknowledgement message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0026Division using four or more dimensions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • H04L1/1671Details of the supervisory signal the supervisory signal being transmitted together with control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L2001/125Arrangements for preventing errors in the return channel

Definitions

  • Uplink control information processing method and device based on multiple input multiple output system and transmission method thereof
  • the present invention relates to the field of communications, and in particular, to an uplink control information processing method and apparatus based on a multiple input multiple output system and a transmission method thereof.
  • the uplink control information needs to consider multi-carrier transmission and MIMO (Multiple Input Multiple Output) simultaneously in the transmission of the PUSCH (Physical Uplink Shared Channel). )transmission.
  • MIMO Multiple Input Multiple Output
  • ACK and RI need to be transmitted repeatedly on all transport layers, taking into account the high load conditions caused by multiple carriers.
  • the current standard only supports single-codeword single-layer transmission, and the ACK/NACK and/or RI transmission is small. How to put ACK/NACK and/or RI ( Rank Indicator) in multiple codewords and layers Repeated transmission and channel coding are required for further clarification.
  • the uplink control information includes ACK/NACK feedback information, and periodic/non-period channel status information (Channel State Information, CSI M message (including CQI (Channel Quality Indicator) / PMI (Precoding Matrix Index) and RI information).
  • the UCI information can be transmitted on the PUCCH (Physical Uplink Control Channel) or multiplexed in the PUSCH and data.
  • the aperiodic reporting of CQI/PMI/RI information is transmitted in the PUSCH.
  • the channel coding first uses RM (32, O)
  • the block code encodes the transmission data, and then transforms to the corresponding CQI/PMI/RI transmission resource size by repetition/truncation coding, where 0 represents the original input information bit number, in the LTE Rel-8 system.
  • the RM (32, 0) block code supports up to 11 bits of original input information; for the case where the number of CQI/PMI/RI feedback bits is greater than 11 bits, the channel code is encoded by a tail-biting convolutional code.
  • the periodic reporting of the CQI/PMI/RI information is transmitted in the PUCCH format 2/2a/2b channel according to the pre-configured reporting period, and the transmission data is channel-coded by the RM (20, A) block code, where A represents the original The number of input information bits, the RM (20, A) block code in the LTE Rel-8 system supports up to 13 bits of original input information.
  • the ACK/NACK feedback information may be determined to be transmitted on the PUCCH or the PUSCH according to a specific scheduling.
  • the Rel-8 system supports up to 4-bit ACK/NACK feedback information, and when the ACK/NACK information is transmitted in the PUCCH format1/la/lb, Perform channel coding; when ACK/NACK information is multiplexed with data on PUSCH, use 1 or 2 bits of ACK/NACK feedback for repeated coding as channel coding, and channel coding for greater than 2 bits of ACK/NACK feedback.
  • the channel coding combined with the RM (32, 0) block code and the repetition/truncation coding is used.
  • the LTE-A system supports UCI transmission on PUCCH and/or PUSCH.
  • LTE-A currently determines that up to five carriers can be aggregated, that is, in the same uplink subframe, the UE needs to feed back multi-bit UCI information corresponding to multiple downlink subframes, taking ACK/NACK feedback information as an example, and the FDD system is the most The 10-bit ACK/NACK information needs to be fed back, and the TDD system needs to feed back up to 40 bits of ACK/NACK information.
  • the LTE system has been verified when selecting the CQI channel coding method.
  • the RM (Reed-Muller) block code has better performance, and its encoding and decoding process is simple. It is not necessary to separately define the codeword set for input information of different lengths; convolutional code and RM code In comparison, its performance is poor, especially when the length of the input original information is short, the performance is significantly deteriorated.
  • the decoding complexity of the RM block code increases exponentially with the length of the encoded original information; Convolutional code, using Viterbi decoding algorithm as the optimal ML decoding algorithm, its decoding complexity increases linearly with the length of the original information. Therefore, the UCI information in LTE-A system should select performance according to its information bit size. And the complexity of decoding complexity Channel coding method.
  • Figure 1 is a schematic diagram of UCI transmission for each codeword independently encoded. As shown in FIG. 1, the UCI of each codeword performs independent channel coding, and then performs channel interleaving and scrambling and modulation processing together with the data, and the number of layers and modulation modes according to the codeword mapping in the channel coding process. Repeat to ensure that the information transmitted on the mapped multiple layers is the same.
  • Figure 2 is a schematic diagram of UCI transmission for each layer independently coded. As shown in Figure 2, the data and CQI are layered first, and the data bits of each layer are obtained, and the UCI is processed independently on each layer (the processing is the same as the current standard processing) and the data. Merge, different information bits or information symbols are allowed on each layer.
  • an object of the present invention is to provide an uplink control information UCI processing method and apparatus and a transmission method based on a multiple input multiple output system to solve at least one of the above problems.
  • an uplink control information UCI processing method based on a multiple input multiple output system includes: repeating ACK/NACK source bits and/or RI source bits in the uplink control information into M groups, each group corresponding to one codeword, where M is the total codeword number; ACK/NACK for each codeword The source bit and/or the RI source bit are channel-encoded to obtain ⁇ 4* ⁇ output bits, where the channel-coded output bits corresponding to each layer in a certain codeword are the total number of layers, the first codeword The corresponding number of layers is; and the output bits are multiplexed and interleaved with the data bits of the corresponding codeword.
  • an uplink control information transmission method using the above uplink control information processing method there is provided an uplink control information transmission method using the above uplink control information processing method.
  • an uplink control information processing method based on a multiple input multiple output system comprises: repeating ACK/NACK source bits and/or RI source bits into L groups, each group corresponding to one layer, where L is a total number of layers; ACK/NACK source bits and/or RI source bits for each layer Channel coding is performed to obtain output bits; and the output bits are multiplexed and interleaved with data bits of the corresponding layer.
  • an uplink control information transmission method using the above uplink control information processing method there is provided an uplink control information transmission method using the above uplink control information processing method.
  • an uplink control information processing apparatus based on a multiple input multiple output system.
  • the apparatus includes: a repetition module, configured to repeat ACK/NACK source bits and/or RI source bits in the uplink control information into M groups, each group corresponding to one codeword, where M is a total codeword number, and M is a positive integer And a channel coding module, configured to perform channel coding on the ACK/NACK source bits and/or the RI source bits of each codeword, to obtain output bits, where the channel coding output bits corresponding to each layer in a certain codeword , the total number of layers, the number of layers corresponding to the first codeword is; and a processing module, configured to multiplex and interleave the output bits with the data bits of the corresponding codeword.
  • an uplink control information processing apparatus based on a multiple input multiple output system.
  • the apparatus includes: a repetition module, configured to repeat ACK/NACK source bits and/or RI source bits into L groups, each group corresponding to one layer, where L is a total layer; a channel coding module, for each layer The ACK/NACK source bits and/or RI source bits are channel coded to obtain output bits; and a processing module for multiplexing and interleaving the output bits with data bits of the corresponding layer.
  • the present invention provides a UCI transmission method in PUSCH, which can solve the problem of transmission and channel coding of ACK/NACK and/or RI in a MIMO system, while considering high load conditions and backward compatibility.
  • Figure 1 is a schematic diagram of UCI transmission for each codeword independent coding
  • Figure 2 is a schematic diagram of UCI transmission for each layer independently coded
  • 3 is a UCI processing method for uplink control information based on a multiple input multiple output system according to an embodiment of the present invention
  • 5 is an uplink control information processing apparatus based on a multiple input multiple output system according to an embodiment of the present invention
  • FIG. 3 illustrates an uplink control information UCI processing method based on a multiple input multiple output system according to an embodiment of the present invention. As shown in Figure 3, the method includes:
  • Step S302 the ACK/NACK source bits and/or the RI source bits in the uplink control information are repeated into M groups, and each group corresponds to one codeword, where M is the total codeword number;
  • Step S304 performing channel coding on the ACK/NACK source bits and/or the RI source bits of each codeword, to obtain 04 C ⁇ output bits, where the channel coding output bits corresponding to each layer in a certain codeword, For the total number of layers, the number of layers corresponding to the first codeword is; Step S306, multiplexing and interleaving the output bits with the data bits of the corresponding codeword.
  • the coding mode is determined according to the ACK/NACK source bits and/or the number of bits of the RI source bits corresponding to each codeword, and the ACK/NACK source bits and/or RI source bits are encoded by using the determined coding mode.
  • the ACK/NACK source bit and/or the RI source bit are inserted into the placeholder and then repeatedly coded to obtain Q ACK output bits; if ACK/ If the number of bits of the NACK source bit and/or the RI source bit is greater than or equal to A and less than or equal to B, the channel coding is performed using the RM (32, 0) code. If 04d>32, the coded bits are cyclically repeated to obtain a bit.
  • the output bits are repeated according to the number of layers of the current codeword mapping, and the output bits corresponding to all layers in the codeword are obtained.
  • the source bit is inserted into the placeholder and then repeatedly encoded to obtain an output bit; if the ACK/NACK source bit and/or the bit of the RI source bit If the number is greater than or equal to A and less than or equal to B, then RM(32,0) code is used for channel coding, if , the coded bits are cyclically repeated to obtain Q ACK ⁇ output bits; and if the number of bits of the ACK/NACK source bits and/or RI source bits is greater than B, the source bits are grouped, for each group The source bit is channel coded with the RM (32, 0) code to obtain an output bit, where ⁇ , ⁇ and ⁇ are positive integers.
  • the embodiment of the invention further provides an uplink control information transmission method, which can adopt the above uplink control information processing method.
  • FIG. 4 illustrates an uplink control information processing method based on a multiple input multiple output system according to an embodiment of the present invention.
  • the method includes: Step 402: Repeat ACK/NACK source bits and/or RI source bits into L groups, each group corresponding to one layer, where L is a total layer number;
  • Step 404 Perform channel coding on ACK/NACK source bits and/or RI source bits of each layer to obtain output bits;
  • Step 406 The output bits are multiplexed and interleaved with the data bits of the corresponding layer.
  • the coding mode may be determined according to the ACK/NACK source bit and/or the number of bits of the RI source bit corresponding to each codeword, and the ACK/NACK source bit and/or the RI source bit may be encoded by using the determined coding mode. .
  • the ACK/NACK source bit and/or the RI source bit are inserted into the placeholder and then repeatedly coded to obtain Q ACK output bits; if ACK/ If the number of bits of the NACK source bit and/or the RI source bit is greater than or equal to A and less than or equal to B, the channel coding is performed using the RM (32, 0) code. If ⁇ 4 > 32, the coded bits are cyclically repeated to obtain a bit.
  • the embodiment of the invention further provides an uplink control information transmission method using the uplink control information processing method.
  • Fig. 5 is a diagram showing an uplink control information processing apparatus based on a multiple input multiple output system according to an embodiment of the present invention. Only two codeword transmissions are shown, but are for illustration only, and the invention is not limited thereto. If there is only one codeword, there is only one signal. The dashed box in Figure 5 represents a possible process.
  • the apparatus 500 includes: a repetition module 502, configured to repeat ACK/NACK source bits and/or RI source bits in the uplink control information into M groups, where each group corresponds to one codeword, where M is the total codeword number, and M is a positive integer; a channel coding module 504, configured to perform channel coding on ACK/NACK source bits and/or RI source bits for each codeword, to obtain Q ACK *Li output bits, where Q ACK is in a certain codeword
  • the channel coding output bits corresponding to each layer are the total number of layers, the number of layers corresponding to the first codeword is L, and the processing module 506 is configured to multiplex and interleave the output bits with the data bits of the corresponding codeword.
  • the channel coding module 504 may include: an coding mode determining module, configured to determine an encoding mode according to an ACK/NACK source bit and/or a number of bits of the RI source bit corresponding to each codeword; and encode and encode.
  • the channel coding module If the number of bits of the ACK/NACK source bit and/or the RI source bit is less than A, the channel coding module repeatedly encodes the ACK/NACK source bit and/or the RI source bit after inserting the placeholder to obtain an output bit; if ACK/ The number of bits of the NACK source bit and/or the RI source bit is greater than or equal to A and less than or equal to B.
  • the channel coding module uses RM (32, 0) code for channel coding. If Q ACK >32, the coded bits are cyclically repeated.
  • the channel coding module uses RM(32,0) for each set of source bits.
  • the code is channel coded to obtain an output bit; where ⁇ , ⁇ and ⁇ are positive integers.
  • the channel coding module repeats the output bits according to the number of layers of the current codeword mapping 7 ⁇ , and obtains output bits corresponding to all layers in the codeword.
  • channel coding module When the current modulation scheme of the data codeword ⁇ ⁇ , channel coding module repeated every 0 "bits as a unit; or without reference to a modulation scheme of the data codewords, channel coding module directly output bits repeated.
  • the channel coding module If the number of bits of the ACK/NACK source bit and/or the RI source bit is less than A, the channel coding module repeatedly encodes the source bit after inserting the placeholder to obtain ⁇ 4* output bits; if the ACK/NACK source bit and/or RI The number of bits of the source bit is greater than or equal to A is less than or equal to B, and the channel coding module uses RM (32, C code for channel coding, if >32, cyclically repeats the coded bits to obtain an output bit; and if ACK/ If the number of bits of the NACK source bit and/or the RI source bit is greater than B, after the source bits are grouped, the channel coding module performs channel coding on each set of source bits by using RM (32, 0) codes to obtain ⁇ 4 * Output bits, where ⁇ , ⁇ and ⁇ are positive integers.
  • the apparatus 600 includes: a repetition module 602, configured to repeat ACK/NACK source bits and/or RI source bits into L groups, each group corresponding to one layer, where L is a total layer number; and a channel coding module 604 for each The ACK/NACK source bits and/or RI source bits of the layers are channel coded to obtain output bits; and a processing module 606 is operative to multiplex and interleave the output bits with the data bits of the corresponding layer.
  • the channel coding module 604 may include: an coding mode determining module, configured to determine an encoding mode according to an ACK/NACK source bit and/or a number of bits of the RI source bit corresponding to each codeword; and encode the encoding.
  • the channel coding module If the number of bits of the ACK/NACK source bit and/or the RI source bit is less than A, the channel coding module repeatedly encodes the ACK/NACK source bit and/or the RI source bit after inserting the placeholder to obtain an output bit; if ACK/ The number of bits of the NACK source bit and/or the RI source bit is greater than or equal to A and less than or equal to B.
  • the channel coding module uses RM (32, 0) code for channel coding. If Q ACK >32, the coded bits are cyclically repeated.
  • the channel coding module uses RM for each set of source bits (32, 0) The code is channel coded to obtain an output bit.
  • ⁇ , ⁇ and ⁇ are positive integers.
  • the uplink control information processing and transmission method of the present invention can be applied to the MIMO+CA system of LTE-A. Assuming that the number of ACK/NACK and/or RI source bits is 0, the channel coding output bit corresponding to each layer in a certain codeword is ⁇ (the ⁇ of each codeword may be different), and the total number of PUSCH codewords is ⁇ , total The number of layers is L, and the number of layers corresponding to the first codeword is ⁇ .
  • Method 1 First, the following output methods are used to obtain output bits;
  • the placeholder is inserted into the source bit and then repeatedly coded (current R8 coding mode). 2) If the number of source bits is greater than or equal to A and less than or equal to B, then the channel coding is performed using the RM (32, 0) code; if 2 ⁇ >32, the coded bits need to be cyclically repeated to obtain ⁇ output bits (currently R8 encoding method).
  • each group of source bits is channel coded with RM (32, 0) codes, and ⁇ bits are output.
  • the output bits are repeated according to the number of layers of the current codeword mapping ⁇ ', and the output bits corresponding to all layers in the codeword are obtained.
  • There are two methods for repeating the repetition if only a single layer is mapped, no repetition is performed):
  • Method a If the modulation of the data in the current codeword is , repeat each bit in units.
  • Method b The output bits are directly repeated without reference to the modulation of the data in the codeword.
  • Method 2 Directly use the following method to obtain c K * L, one output bit.
  • the RM (32, 0) code is used for channel coding; if 2 ⁇ * > 32, the coded bits need to be cyclically repeated to obtain output bits.
  • each group of source bits is channel coded with RM (32, 0) codes, and ⁇ * ⁇ output bits are directly output.
  • the channel coding is performed using the RM (32, 0) code; if 2 ⁇ >32, the coded bits need to be cyclically repeated to obtain ⁇ output bits (currently R8 encoding method).
  • each group of source bits is channel coded with RM (32, 0) codes, and ⁇ bits are output.
  • Embodiment 1 (corresponding to scheme 1 and method 1):
  • the source bits are copied into two groups, each of which is used for ACK/NACK and/or RI transmission on two codewords.
  • M 1;n is the base sequence of the RM code.
  • Embodiment 2 (corresponding to scheme 1 and method 2):
  • the source bits are copied into two groups, each of which is used for ACK/NACK and/or RI transmission on two codewords, respectively.
  • Embodiment 3 (corresponding to the second scheme):
  • the invention has wide applicability and can be used for any number of antennas and antenna arrays, any Uplink transmission in a duplex system (TDD system or FDD system) and any transmission mode (such as SU-MIMO, MU-MIMO, CoMP).
  • TDD system Time Division Duplex system
  • FDD system Frequency Division Duplex system
  • transmission mode such as SU-MIMO, MU-MIMO, CoMP
  • the present invention solves the problem of transmission and channel coding of ACK/NACK and/or RI in a MIMO system, while considering high load conditions and backward compatibility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Radio Transmission System (AREA)

Description

基于多输入多输出系统的上行控制信息処理方法和装置及其传输方法
相关申请的交叉参考
本申请要求于 2010年 8月 2 日提交的题目为"基于 MIMO系统的 UCI 处理方法和装置及其传输方法" 的中国专利申请第 201010243090.9号的优 先权, 其全部内容并入本申请作为参考。 技术领域
本发明涉及通信领域, 尤其涉及一种基于多输入多输出系统的上行控 制信息处理方法和装置及其传输方法。 背景技术
在 LTE-A系统中, 上行控制信息 (Uplink Control Information, UCI ) 在 PUSCH ( Physical Uplink Shared Channel , 物理上行共享信道) 的传输 需要同时考虑多载波传输和 MIMO ( Multiple Input Multiple Output, 多输入 多输出)传输。 为了获得最大的分集增益, ACK和 RI需要在所有传输层 上重复传输, 同时要考虑多载波引起的高负载情况。 目前的标准只支持单 码字单层传输的情况, 而且 ACK/NACK 和 /或 RI 传输量很小, 如何将 ACK/NACK和 /或 RI ( Rank Indicator, 秩指示) 在多个码字和层上进行重 复传输以及信道编码需要进一步澄清。
上行控制信息包括 ACK/NACK反馈信息、 周期 /非周期信道状态信息 ( Channel State Information, CSI M言息 (包括 CQI( Channel Quality Indicator, 信道质量指示符 ) /PMI (预编码矩阵索引 ) 和 RI信息 ) 。 在 LTE R8系统 中, UCI信息可在 PUCCH ( Physical Uplink Control Channel, 物理上行链 路控制信道) 上进行传输, 也可在 PUSCH与数据复用传输。
CQI/PMI/RI 信息的非周期上报在 PUSCH 中进行传输, 对于 CQI/PMI/RI反馈比特数不超过 11比特的情况,其信道编码首先釆用 RM(32, O)分组码对传输数据进行编码, 然后通过重复 /截短 ( repetition/truncation ) 编码变换到对应的 CQI/PMI/RI传输资源大小, 其中 0表示原始输入信息 比特数, LTE Rel-8系统中的 RM(32, 0)分组码最大支持 11比特原始输入 信息; 对于 CQI/PMI/RI反馈比特数大于 11 比特的情况, 其信道编码釆用 tail-biting卷积码进行编码。 CQI/PMI/RI信息的周期上报则根据预先配置的 上报周期在 PUCCH format 2/2a/2b信道中进行传输,釆用 RM(20, A)分组码 对传输数据进行信道编码, 其中 A表示原始输入信息比特数, LTE Rel-8 系统中的 RM(20, A)分组码最大支持 13比特原始输入信息。
ACK/NACK反馈信息则可根据具体的调度确定在 PUCCH或 PUSCH 进行传输, Rel-8系统最多支持 4比特 ACK/NACK反馈信息,当 ACK/NACK 信息在 PUCCH formatl/la/lb进行传输时,不进行信道编码;当 ACK/NACK 信息在 PUSCH上与数据进行复用传输时, 对 1或 2比特 ACK/NACK反馈 釆用重复编码作为信道编码,对大于 2比特 ACK/NACK反馈的信道编码同 非周期 CQI/PMI/RI传输一样,釆用 RM(32, 0)分组码与重复 /截短编码相结 合的信道编码。
与 LTE系统保持兼容性, LTE-A系统支持 UCI在 PUCCH和 /或 PUSCH 的传输。 LTE-A目前确定最多可支持 5个载波进行聚合, 即在同一个上行 子帧内, UE需要反馈对应多个下行子帧的多比特 UCI信息,以 ACK/NACK 反馈信息为例, FDD系统最多需要反馈 10比特 ACK/NACK信息, TDD系 统最多需要反馈 40比特 ACK/NACK信息。 为了在 PUSCH支持更高的信 息比特传输, 需要对目前 LTE的信道编码方法进行扩展。 LTE系统在选择 CQI信道编码方法时已经验证, RM ( Reed-Muller )分组码性能较好, 且其 编译码处理简单, 对不同长度的输入信息无需分别定义码字集合; 卷积码 与 RM码相比, 其性能较差, 特别是对输入原始信息长度较短时性能明显 变差。 但是, 对于 LTE-A系统, 当接收端釆用最大似然 ( ML , Maximum Likelihood )译码方法进行译码时, RM分组码的译码复杂度与编码原始信 息长度成指数增长关系; 而对于卷积码, 釆用 Viterbi译码算法作为最优的 ML 译码算法, 其译码复杂度与编码原始信息长度成线性增长关系, 因此 LTE-A系统中 UCI信息应根据其信息比特大小选择性能和译码复杂度折中 的信道编码方法。
另一方面, 在 LTE-A中需要支持最多两个码字四层的空间复用传输, 如何在多层中传输 UCI也是需要解决的问题。 目前会议结论是 CQI在一个 码字中复用, 而 ACK/NACK和 /或 RI在所有码字上重复传输, 从而获得分 集增益。 对于 ACK/NACK和 /或 RI传输, 每个层上占用的符号数以如下公 式 一定扩展: · Μ PUSCH
Figure imgf000005_0001
从而 ACK/NACK和 /或 RI的信道编码输出比特 = 2 *0„。其中 β 如何确定还没有结论, 可以是所有码字用同样的值, 也可以是不同码字甚 至不同的层用不同的值, 此时得到的每个码字 /层的 UCI符号数也会不同。 由于每个码字 /层所用的数据调制方式可能不同, 如何对信息比特进行重 复, 如何在不同码字上进行信道编码和调制, 都是需要标准化的内容。
现有两种技术可以支持多码字多层的 UCI传输。
图 1为每个码字独立编码的 UCI传输示意图。 方案一如图 1所示, 每 个码字的 UCI进行独立的信道编码, 然后和数据一起进行信道交织以及加 扰、 调制处理, 在信道编码过程中根据这个码字映射的层数和调制方式进 行重复, 以保证所映射的多个层上传输的信息是相同的。
图 2为每个层独立编码的 UCI传输示意图。 方案二如图 2所示, 先对 数据和 CQI进行层映射, 得到每个层的数据比特, 并且 UCI在每个层上进 行独立的处理 (处理过程与目前标准的处理过程相同) 再与数据合并, 每 个层上允许使用不同信息比特数或者信息符号数。
对于方案一, 因为在信道编码后再进行码字内重复, 而且要依赖调制 方式, 因此编码较为复杂; 对于方案二, 因为每个层独立进行信道编码、 交织、 加扰、 调制等过程, 增加了处理的复杂度 (方案一只需要每个码字 进行这个过程)。 两个方案共同的缺点是, 因为重用 R8的编码方法, 并不 支持很高的信息比特负载 (比如多于 11比特的信息源) 。 发明内容
针对相关技术中存在的一个或多个问题, 本发明的目的在于提供一种 基于多输入多输出系统的上行控制信息 UCI处理方法和装置及传输方法, 以解决上述问题中的至少之一。
根据本发明的实施例, 提供了一种基于多输入多输出系统的上行控制 信息 UCI处理方法。 该方法包括: 将上行控制信息中的 ACK/NACK源比 特和 /或 RI源比特重复成 M组, 每组对应一个码字, 其中, M为总码字数; 对于每个码字的 ACK/NACK 源比特和 /或 RI 源比特进行信道编码, 得到 β4 *^·个输出比特, 其中, 为某个码字中每个层对应的信道编码输出 比特, 为总层数, 第 ζ·个码字对应的层数为 ; 以及将输出比特与相应码 字的数据比特进行复用和交织。
根据本发明的实施例, 提供了一种釆用上述上行控制信息处理方法的 上行控制信息传输方法。
根据本发明的实施例, 提供了一种基于多输入多输出系统的上行控制 信息处理方法。 该方法包括: 将 ACK/NACK源比特和 /或 RI源比特重复成 L组, 每组对应一个层, 其中 L为总层数; 对于每个层的 ACK/NACK源比 特和 /或 RI源比特进行信道编码, 得到 个输出比特; 以及将输出比特 与相应层的数据比特进行复用和交织。
根据本发明的实施例, 提供了一种釆用上述上行控制信息处理方法的 上行控制信息传输方法。
根据本发明的实施例, 提供了一种基于多输入多输出系统的上行控制 信息处理装置。 该装置包括: 重复模块, 用于将上行控制信息中的 ACK/NACK源比特和 /或 RI源比特重复成 M组 ,每组对应一个码字,其中, M 为总码字数, M 为正整数; 信道编码模块, 用于对于每个码字的 ACK/NACK源比特和 /或 RI源比特进行信道编码, 得到 个输出比 特, 其中, 为某个码字中每个层对应的信道编码输出比特, 为总层 数, 第 ,个码字对应的层数为 ; 以及处理模块, 用于将输出比特与相应 码字的数据比特进行复用和交织。 根据本发明的实施例, 提供了一种基于多输入多输出系统的上行控制 信息处理装置。 该装置包括: 重复模块, 用于将 ACK/NACK源比特和 /或 RI源比特重复成 L组, 每组对应一个层, 其中, L为总层数; 信道编码模 块, 用于对于每个层的 ACK/NACK源比特和 /或 RI源比特进行信道编码, 得到 个输出比特; 以及处理模块, 用于将输出比特与相应层的数据比 特进行复用和交织。
本发明提供了一种 PUSCH中的 UCI传输方法, 可以解决 ACK/NACK 和 /或 RI在 MIMO系统中的传输和信道编码问题, 同时考虑高负载情况和 后向兼容性。 附图说明
图 1为每个码字独立编码的 UCI传输示意图;
图 2为每个层独立编码的 UCI传输示意图;
图 3 为根据本发明实施例的基于多输入多输出系统的上行控制信息 UCI处理方法;
图 4为根据本发明实施例的基于多输入多输出系统的上行控制信息处 理方法;
图 5为根据本发明实施例的基于多输入多输出系统的上行控制信息处 理装置; 以及
图 6为根据本发明实施例的基于多输入多输出系统的 UCI处理装置。 具体实施方式
图 3 为根据本发明实施例的基于多输入多输出系统的上行控制信息 UCI处理方法。 如图 3所示, 该方法包括:
步骤 S302 , 将上行控制信息中的 ACK/NACK源比特和 /或 RI源比特 重复成 M组, 每组对应一个码字, 其中, M为总码字数;
步骤 S304 , 对于每个码字的 ACK/NACK源比特和 /或 RI源比特进行 信道编码, 得到 04C^ 个输出比特, 其中, 为某个码字中每个层对 应的信道编码输出比特, 为总层数, 第 ,个码字对应的层数为 ; 以及 步骤 S306 , 将输出比特与相应码字的数据比特进行复用和交织。
其中,根据每个码字对应的 ACK/NACK源比特和 /或 RI源比特的比特 数确定编码方式, 并釆用所确定的编码方式对 ACK/NACK源比特和 /或 RI 源比特进行编码。
如果 ACK/NACK 源比特和 /或 RI 源比特的比特数小于 A , 则对 ACK/NACK源比特和 /或 RI源比特插入占位符后进行重复编码,得到 QACK 个输出比特; 如果 ACK/NACK源比特和 /或 RI源比特的比特数大于等于 A 小于等于 B , 则釆用 RM(32,0)码进行信道编码, 如果 04d>32 , 则对编码 后的比特进行循环重复, 得到 个输出比特; 以及如果 ACK/NACK源 比特和 /或 RI源比特的比特数大于 B, 则对该源比特进行分组后,对每组源 比特釆用 RM(32,0)码进行信道编码, 得到 个输出比特; 其中, Α<Β, Α和 Β为正整数。
对输出比特按照当前码字映射的层数^进行重复, 得到码字内所有层 对应的输出比特。
如果当前码字中数据的调制方式为 QM , 则以每 ρ个比特为单位进行 重复; 或者不参考码字中数据的调制方式, 直接对 个输出比特进行重 复。
如果 ACK/NACK源比特和 /或 RI源比特的比特数小于 A, 则对源比特 插入占位符后进行重复编码, 得到 个输出比特; 如果 ACK/NACK 源比特和 /或 RI源比特的比特数大于等于 A小于等于 B , 则釆用 RM(32,0) 码进行信道编码, 如果
Figure imgf000008_0001
, 则对编码后的比特进行循环重复, 得 到 QACK ^个输出比特; 以及如果 ACK/NACK源比特和 /或 RI源比特的比 特数大于 B , 则对该源比特进行分组后, 对每组源比特釆用 RM(32,0)码进 行信道编码, 得到 个输出比特, 其中, Α<Β , Α和 Β为正整数。
具体地, 可以为 A=3 , B=10或 11。
本发明实施例还提供了一种上行控制信息传输方法, 可以釆用以上的 上行控制信息处理方法。
图 4为根据本发明实施例的基于多输入多输出系统的上行控制信息处 理方法。 该方法包括: 步骤 402 , 将 ACK/NACK源比特和 /或 RI源比特重复成 L组, 每组对 应一个层, 其中 L为总层数;
步骤 404 , 对于每个层的 ACK/NACK源比特和 /或 RI源比特进行信道 编码, 得到 个输出比特; 以及
步骤 406 , 将输出比特与相应层的数据比特进行复用和交织。
其中, 可以根据每个码字对应的 ACK/NACK源比特和 /或 RI源比特的 比特数确定编码方式, 并釆用所确定的编码方式对 ACK/NACK源比特和 / 或 RI源比特进行编码。
如果 ACK/NACK 源比特和 /或 RI 源比特的比特数小于 A , 则对 ACK/NACK源比特和 /或 RI源比特插入占位符后进行重复编码,得到 QACK 个输出比特; 如果 ACK/NACK源比特和 /或 RI源比特的比特数大于等于 A 小于等于 B , 则釆用 RM(32,0)码进行信道编码, 如果 β4 >32 , 则对编码 后的比特进行循环重复, 得到 个输出比特; 以及如果 ACK/NACK源 比特和 /或 RI源比特的比特数大于 B , 则对该源比特进行分组后,对每组源 比特釆用 RM(32,0)码进行信道编码, 得到 个输出比特。 其中, Α<Β , Α和 Β为正整数。
具体地, 可以为 A=3 , B=10或 11。
本发明实施例还提供一种釆用上述上行控制信息处理方法的上行控制 信息传输方法。
图 5为根据本发明实施例的基于多输入多输出系统的上行控制信息处 理装置。 仅示出了两码字传输, 但仅用于说明, 本发明不限于此。 如果只 有一个码字, 则只有一路信号。 在图 5中虚线框代表可能的过程。
该装置 500包括:重复模块 502 ,用于将上行控制信息中的 ACK/NACK 源比特和 /或 RI源比特重复成 M组 , 每组对应一个码字 , 其中, M为总码 字数, M为正整数; 信道编码模块 504 , 用于对于每个码字的 ACK/NACK 源比特和 /或 RI源比特进行信道编码,得到 QACK*Li个输出比特,其中, QACK 为某个码字中每个层对应的信道编码输出比特, 为总层数, 第 ,个码字对 应的层数为 L , 以及处理模块 506 , 用于将输出比特与相应码字的数据比 特进行复用和交织。 信道编码模块 504 可以包括: 编码方式确定模块, 用于根据每个码字 对应的 ACK/NACK源比特和 /或 RI源比特的比特数确定编码方式; 以及编 进行编码。
如果 ACK/NACK源比特和 /或 RI源比特的比特数小于 A, 信道编码模 块对 ACK/NACK源比特和 /或 RI源比特插入占位符后进行重复编码,得到 个输出比特;如果 ACK/NACK源比特和 /或 RI源比特的比特数大于等 于 A小于等于 B ,信道编码模块釆用 RM(32,0)码进行信道编码,如果 QACK >32 , 则对编码后的比特进行循环重复, 得到 个输出比特; 以及如果 ACK/NACK源比特和 /或 RI源比特的比特数大于 B , 在对该源比特进行分 组后, 信道编码模块对每组源比特釆用 RM(32,0)码进行信道编码, 得到 个输出比特; 其中, Α<Β , Α和 Β为正整数。
信道编码模块对输出比特按照当前码字映射的层数 7^·进行重复, 得到 码字内所有层对应的输出比特。
在当前码字中数据的调制方式为 ρ时, 信道编码模块以每 0„个比特 为单位进行重复; 或者不参考码字中数据的调制方式, 信道编码模块直接 对 个输出比特进行重复。
如果 ACK/NACK源比特和 /或 RI源比特的比特数小于 A, 信道编码模 块对源比特插入占位符后进行重复编码, 得到 β4 * 个输出比特; 如果 ACK/NACK源比特和 /或 RI源比特的比特数大于等于 A小于等于 B , 信道 编码模块釆用 RM(32,C 码进行信道编码, 如果 >32 , 则对编码后的 比特进行循环重复, 得到 个输出比特; 以及如果 ACK/NACK源比 特和 /或 RI源比特的比特数大于 B , 则在对该源比特进行分组后,信道编码 模块对每组源比特釆用 RM(32,0)码进行信道编码, 得到 β4 * 个输出比 特。 其中 Α<Β , Α和 Β为正整数。
具体地, 可以为 A=3 , B=10或 11。
图 6为根据本发明实施例的基于多输入多输出系统的 UCI处理装置。 图 6中仅示出了四层传输,如果 L<4,则只有其中 L路信号,但这仅是示意性 的, 还可以为其他数量的层传输。 该装置 600包括: 重复模块 602, 用于将 ACK/NACK源比特和 /或 RI 源比特重复成 L组,每组对应一个层,其中 L为总层数;信道编码模块 604 , 用于对于每个层的 ACK/NACK源比特和 /或 RI源比特进行信道编码,得到 个输出比特; 以及处理模块 606 , 用于将输出比特与相应层的数据比 特进行复用和交织。
信道编码模块 604 可以包括: 编码方式确定模块, 用于根据每个码字 对应的 ACK/NACK源比特和 /或 RI源比特的比特数确定编码方式; 以及编 进行编码。
如果 ACK/NACK源比特和 /或 RI源比特的比特数小于 A, 信道编码模 块对 ACK/NACK源比特和 /或 RI源比特插入占位符后进行重复编码,得到 个输出比特;如果 ACK/NACK源比特和 /或 RI源比特的比特数大于等 于 A小于等于 B ,信道编码模块釆用 RM(32,0)码进行信道编码,如果 QACK >32 , 则对编码后的比特进行循环重复, 得到 个输出比特; 以及如果 ACK/NACK源比特和 /或 RI源比特的比特数大于 B , 则在对该源比特进行 分组后, 信道编码模块对每组源比特釆用 RM(32,0)码进行信道编码, 得到 个输出比特。 其中 Α<Β , Α和 Β为正整数。
具体地, 可以为 A=3 , B=10或 11。
具体地, 本发明的上行控制信息处理和传输方法可以用于 LTE-A 的 MIMO+CA系统。 假设 ACK/NACK和 /或 RI源比特数为 0, 某个码字中每 个层对应的信道编码输出比特为 ^ (每个码字的^^可能不同), PUSCH 总码字数为 Μ, 总层数为 L, 第 ,个码字对应的层数为 ^。
方案 1 : 每个码字独立处理
1、 将 ACK/NACK和 /或 RI源比特重复成 M组 , 每组对应一个码字。 2、 对于每个码字的 ACK/NACK和 /或 RI源比特进行信道编码, 得到 个输出比特, 可以有两种方法:
方法 1 :首先, 用如下方法得到 个输出比特;
1 )如果源比特数小于 Α, 则对源比特插入占位符后进行重复编码(目 前 R8编码方式)。 2)如果源比特数大于等于 A小于等于 B, 则釆用 RM(32,0)码进行信 道编码; 如果 2^>32, 则需要对编码后的比特进行循环重复得到 ^个输 出比特 (目前 R8编码方式)。
3)如果源比特数大于 B, 则在对该源比特进行分组后, 对每组源比特 釆用 RM(32,0)码进行信道编码, 输出^ ^个比特。
其中 A<B, 典型的取值为 A=3, B=10或 11;
其次, 对输出比特按照当前码字映射的层数^ '进行重复, 得到码字内 所有层对应的输出比特, 重复可以有两种方法 (如果只映射单层, 则不进 行重复):
方法 a: 如果当前码字中数据的调制方式为 , 则以每 个比特为单 位进行重复。
方法 b: 不参考码字中数据的调制方式, 直接对 ^个输出比特进行重 复。
方法 2: 直接用如下方法得到 cK * L,个输出比特。
1)如果源比特数小于 A, 则对源比特插入占位符后进行重复编码, 得 到 个输出比特。
2)如果源比特数大于等于 Α小于等于 Β, 则釆用 RM(32,0)码进行信 道编码;如果 2^* >32,则需要对编码后的比特进行循环重复得到 个输出比特。
3)如果源比特数大于 Β, 则在对该源比特进行分组后, 对每组源比特 釆用 RM(32,0)码进行信道编码, 直接输出 ^*^个输出比特。
其中 A<B, 按照目前标准的取值为 A=3, B=10或 11。
3、 将输出比特与相应码字的数据比特进行复用和交织。 方案 2: 每个层独立处理
1、 将 ACK/NACK和 /或 RI源比特重复成 L组 , 每组对应一个层; 2、对于每个层的 ACK/NACK和 /或 RI源比特进行信道编码,得到 个输出比特 (每个层的^^可能不同):
1)如果源比特数小于 A, 则对源比特插入占位符后进行重复编码(目 前 R8编码方式)。
2)如果源比特数大于等于 A小于等于 B, 则釆用 RM(32,0)码进行信 道编码; 如果 2^>32, 则需要对编码后的比特进行循环重复得到 ^个输 出比特 (目前 R8编码方式)。
3 )如果源比特数大于 B, 则在对该源比特进行分组后, 对每组源比特 釆用 RM(32,0)码进行信道编码, 输出^ ^个比特。
其中 A<B, 典型取值为 A=3, B=10或 11。
3、 将输出比特与相应层的数据比特进行复用和交织。 实施例一 (对应方案一和方法 1 ):
假设有 0=10个比特的 ACK/NACK和 /或 RI源比特 ° ,当前共有 M=2 个码字 L=3层的 PUSCH数据传输 (第一个码字 1层, 第二个码字 2层), 编码后的输出比特序列为^ (两个码字每层的输出比特长度 分别为 40和 30), 则其处理步骤如下:
1、 将源比特复制成两组, 每组都为 , 分别用于两个码字上的 ACK/NACK和 /或 RI传输。
2、 对每个码字分别进行信道编码(因为长度大于 2小于 11, 釆用 RM 编码 ):
Figure imgf000013_0001
其中 M1;n为 RM码的基础序列。
3、 对于输出比特进行重复, 其中第一个码字不需要重复 (长度为 2°^ =40), 第二个码字需要重复一遍得到两层对应的输出比特, 可以有两 种重复方法 (长度为 2 ^*2=60):
a )假设调制方式为 QPSK即 Q =2 , 则:
>ACK „ACK„ACK„ ACK„ ACK„ACK„ACK„ ACK„ ACK
Qout =q。 <Ίι Qo Qi <Ί2 < q2 q3
b ) 直接对整个序列进行重复, 则:
r ACK ACK ACK ACK ACK „ ACK„ ACK„ ACK„ ACK
4 ) 将两个码字的输出比特与各自码字的数据进行复用和交织。 实施例二 (对应方案一和方法 2 ):
假设有 0=15个比特的 ACK/NACK和 /或 RI源比特 ° ,当前共有 M=2 个码字 L=3层的 PUSCH数据传输 (第一个码字 1层, 第二个码字 2层), 编码后的输出比特序列为^ (两个码字每层的输出比特长度 分别为 40和 30 ), 则其处理步骤如下:
1 ) 将源比特复制成两组, 每组都为 , 分别用于两个码字上的 ACK/NACK和 /或 RI传输。
2 )对每个码字分别进行信道编码(因为长度大于 11 ,故釆用 RM(32,0) 码):
其中第一个码字进行分组后, 两组分别进行 RM(32,8)和 RM(32,7)的信 道编码后, 进行截短后输出比特长度为 =40。
第二个码字进行分组后, ( 60,15 ) 两组分别进行 RM(32,8)和 RM(32,7) 的信道编码后, 进行截短后输出比特长度为 Q CK *2=60。
3 ) 将两个码字的输出比特与各自码字的数据进行复用和交织。 实施例三 (对应方案二):
假设有 0=10个比特的 ACK/NACK和 /或 RI源比特 ° ,当前共有 M=2 个码字 L=3层的 PUSCH数据传输 (第一个码字 1层, 第二个码字 2层), 编码后的输出比特序列为 q (三个层的输出比特长度 ^分别为
40/30/30 ), 则其处理步骤如下:
1 ) 将源比特复制成 3 组, 每组都为 , 分别用于 3 个层上的 ACK/NACK和 /或 RI传输。
2 )对每个层分别进行信道编码(因为长度大于 3小于 11 , 故釆用 RM 码):
Figure imgf000014_0001
三个层分别进行信道编码后的输出比特数分别为 ^。=40 , ^« =30 ,
Q =30
3 ) 将三个层的输出比特与各自层的数据进行复用和交织。
本发明具有广泛的适用性, 可以用于任意天线数量和天线阵列, 任意 双工系统 ( TDD系统或者 FDD系统) 和任意发送模式 (比如 SU-MIMO、 MU-MIMO、 CoMP ) 下的上行传输。
本发明解决了 ACK/NACK和 /或 RI在 MIMO系统中的传输和信道编 码问题, 同时考虑了高负载情况和后向兼容性。
本发明具有以下有益技术效果当中的一项或多项:
( 1 ) 处理简单, 计算量小;
( 2 ) 可以支持高信息比特负载的情况;
( 3 ) 可以得到较大的编码增益。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于 本领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明 的保护范围之内。

Claims

权利要求书
1、一种基于多输入多输出系统的上行控制信息 UCI处理方法,其特征 在于, 包括:
将所述上行控制信息中的 ACK/NACK源比特和 /或 RI源比特重复成 M 组, 每组对应一个码字, 其中, M为总码字数;
对于每个码字的 ACK/NACK源比特和 /或 RI源比特进行信道编码,得 到 QACK*Li个输出比特, 其中, QACK为某个码字中每个层对应的信道 编码输出比特, L为总层数, 第 i个码字对应的层数为 Li; 以及
将所述输出比特与相应码字的数据比特进行复用和交织。
2、 根据权利要求 1 所述的方法, 其特征在于, 根据每个码字对应的 ACK/NACK源比特和 /或 RI源比特的比特数确定编码方式, 并釆用所确定 的编码方式对所述 ACK/NACK源比特和 /或所述 RI源比特进行编码。
3、 根据权利要求 2所述的方法, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 则 对所述 ACK/NACK 源比特和 /或所述 RI 源比特插入占位符后进行重复编 码, 得到 QACK个输出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 则釆用 RM(32,0)码进行信道编码, 如果 QACK>32 , 则对编 码后的比特进行循环重复, 得到 QACK个输出比特; 以及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 则 釆用分组 RM码进行信道编码, 得到 QACK个输出比特;
其中, A<B , A和 B为正整数。
4、 根据权利要求 3所述的方法, 其特征在于, 对所述输出比特按照当 前码字映射的层数 Li进行重复, 得到码字内所有层对应的输出比特。
5、 根据权利要求 4所述的方法, 其特征在于,
如果当前码字中数据的调制方式为 Q m ,则以每 Q m个比特为单位进行 重复; 或者 不参考码字中数字的调制方式, 直接对 QACK个输出比特进行重复。
6、 根据权利要求 2所述的方法, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 则 对源比特插入占位符后进行重复编码, 得到 QACK*Li个输出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 则釆用 RM(32,0)码进行信道编码, 如果 QACK*Li>32 , 则对 编码后的比特进行循环重复, 得到 QACK*Li个输出比特; 以及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 则 釆用分组 RM码进行信道编码, 得到 QACK*Li个输出比特;
其中, A<B , A和 B为正整数。
7、一种基于多输入多输出系统的上行控制信息处理方法,其特征在于, 所述方法包括:
将 ACK/NACK源比特和 /或 RI源比特重复成 L组 , 每组对应一个层 , 其中 L为总层数;
对于每个层的 ACK/NACK源比特和 /或所述 RI源比特进行信道编码, 得到 QACK个输出比特; 以及
将所述输出比特与相应层的数据比特进行复用和交织。
8、 根据权利要求 7 所述的方法, 其特征在于, 根据每个码字对应的 ACK/NACK源比特和 /或 RI源比特的比特数确定编码方式, 并釆用所确定 的编码方式对所述 ACK/NACK源比特和 /或所述 RI源比特进行编码。
9、 根据权利要求 8所述的方法, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 则 对所述 ACK/NACK 源比特和 /或所述 RI 源比特插入占位符后进行重复编 码, 得到 QACK个输出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 则釆用 RM(32,0)码进行信道编码, 如果 QACK>32 , 则对编 码后的比特进行循环重复, 得到 QACK个输出比特; 以及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 则 釆用分组 RM码进行信道编码, 得到 QACK个输出比特; 其中, A<B , A和 B为正整数。
10、 一种基于多输入多输出系统的上行控制信息处理装置, 其特征在 于, 包括:
重复模块, 用于将所述上行控制信息中的 ACK/NACK源比特和 /或 RI 源比特重复成 M组, 每组对应一个码字, 其中, M为总码字数, M为正整 数;
信道编码模块, 用于对于每个码字的 ACK/NACK源比特和 /或 RI源比 特进行信道编码, 得到 QACK*Li个输出比特, 其中, QACK为某个码字 中每个层对应的信道编码输出比特, L为总层数, 第 i个码字对应的层数为 Li; 以及
处理模块, 用于将所述输出比特与相应码字的数据比特进行复用和交 织。
11、 根据权利要求 10所述的装置, 其特征在于, 所述信道编码模块包 括:
编码方式确定模块, 用于根据每个码字对应的 ACK/NACK源比特和 / 或 RI源比特的比特数确定编码方式; 以及
编码模块, 用于釆用所确定的编码方式对所述 ACK/NACK源比特和 / 或所述 RI源比特进行编码。
12、 根据权利要求 11所述的装置, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 所 述信道编码模块对所述 ACK/NACK源比特和 /或所述 RI源比特插入占位符 后进行重复编码, 得到 QACK个输出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 所述信道编码模块釆用 RM(32,0)码进行信道编码, 如果 QACK>32 , 则对编码后的比特进行循环重复, 得到 QACK个输出比特; 以 及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 所 述信道编码模块釆用分组 RM码进行信道编码, 得到 QACK个输出比特; 其中, A<B , A和 B为正整数。
13、 根据权利要求 12所述的装置, 其特征在于, 所述信道编码模块对 所述输出比特按照当前码字映射的层数 Li进行重复, 得到码字内所有层对 应的输出比特。
14、 根据权利要求 13所述的装置, 其特征在于,
在当前码字中数据的调制方式为 Qm 时, 所述信道编码模块以每 Qm 个比特为单位进行重复; 或者
不参考码字中数据的调制方式, 所述信道编码模块直接对 Q ACK个输 出比特进行重复。
15、 根据权利要求 11所述的装置, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 所 述信道编码模块对源比特插入占位符后进行重复编码,得到 QACK*Li个输 出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 所述信道编码模块釆用 RM(32,0)码进行信道编码, 如果 QACK*Li>32 , 则对编码后的比特进行循环重复, 得到 QACK*Li个输出比 特, 其中 A<B , A和 B为正整数; 以及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 所 述信道编码模块釆用分组 RM码进行信道编码,得到 QACK*Li个输出比特。
16、 一种基于多输入多输出系统的上行控制信息处理装置, 其特征在 于, 所述装置包括:
重复模块, 用于将 ACK/NACK源比特和 /或 RI源比特重复成 L组, 每 组对应一个层, 其中, L为总层数;
信道编码模块, 用于对于每个层的 ACK/NACK源比特和 /或 RI源比特 进行信道编码, 得到 QACK个输出比特; 以及
处理模块,用于将所述输出比特与相应层的数据比特进行复用和交织。
17、 根据权利要求 16所述的装置, 其特征在于, 所述信道编码模块包 括:
编码方式确定模块, 用于根据每个码字对应的 ACK/NACK源比特和 / 或 RI源比特的比特数确定编码方式; 以及 编码模块, 用于釆用所确定的编码方式对所述 ACK/NACK源比特和 / 或所述 RI源比特进行编码。
18、 根据权利要求 17所述的装置, 其特征在于,
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数小于 A, 所 述信道编码模块对所述 ACK/NACK源比特和 /或所述 RI源比特插入占位符 后进行重复编码, 得到 QACK个输出比特;
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于等于 A 小于等于 B , 所述信道编码模块釆用 RM(32,0)码进行信道编码, 如果 QACK>32 , 则对编码后的比特进行循环重复, 得到 QACK个输出比特, 其 中 A<B , A和 B为正整数; 以及
如果所述 ACK/NACK源比特和 /或所述 RI源比特的比特数大于 B , 所 述信道编码模块釆用分组 RM码进行信道编码, 得到 QACK个输出比特。
PCT/CN2011/077911 2010-08-02 2011-08-02 基于多输入多输出系统的上行控制信息处理方法和装置及其传输方法 WO2012016516A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11814099.5A EP2602950A4 (en) 2010-08-02 2011-08-02 Method and apparatus for processing uci and method for transmission thereof based on mimo system
KR1020127031270A KR101447071B1 (ko) 2010-08-02 2011-08-02 다입력 다출력 시스템을 기반으로 하는 상향링크 제어정보 처리방법과 장치 및 그의 전송방법
EP23214351.1A EP4307586A3 (en) 2010-08-02 2011-08-02 Method and apparatus for processing uci based on mimo system, and method for transmitting uci based on mimo system
JP2013522092A JP5775159B2 (ja) 2010-08-02 2011-08-02 Mimoシステムに基づくuci処理方法と装置及び伝送方法
US13/703,628 US9210696B2 (en) 2010-08-02 2011-08-02 Method and apparatus for processing UCI and method for transmission thereof based on MIMO system
US14/930,493 US9532345B2 (en) 2010-08-02 2015-11-02 Method and apparatus for processing UCI and method for transmission thereof based on MIMO system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102430909A CN102118237B (zh) 2010-08-02 2010-08-02 基于mimo系统的uci处理方法和装置及其传输方法
CN201010243090.9 2010-08-02

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/703,628 A-371-Of-International US9210696B2 (en) 2010-08-02 2011-08-02 Method and apparatus for processing UCI and method for transmission thereof based on MIMO system
US14/930,493 Continuation US9532345B2 (en) 2010-08-02 2015-11-02 Method and apparatus for processing UCI and method for transmission thereof based on MIMO system

Publications (1)

Publication Number Publication Date
WO2012016516A1 true WO2012016516A1 (zh) 2012-02-09

Family

ID=44216848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/077911 WO2012016516A1 (zh) 2010-08-02 2011-08-02 基于多输入多输出系统的上行控制信息处理方法和装置及其传输方法

Country Status (6)

Country Link
US (2) US9210696B2 (zh)
EP (2) EP2602950A4 (zh)
JP (1) JP5775159B2 (zh)
KR (1) KR101447071B1 (zh)
CN (1) CN102118237B (zh)
WO (1) WO2012016516A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013125908A1 (ko) * 2012-02-22 2013-08-29 엘지전자 주식회사 제어정보 전송 방법 및 장치

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8879513B2 (en) * 2010-05-12 2014-11-04 Samsung Electronics Co., Ltd. Uplink transmission apparatus and method for mobile communication system supporting uplink MIMO
CN102118237B (zh) 2010-08-02 2013-06-05 电信科学技术研究院 基于mimo系统的uci处理方法和装置及其传输方法
EP2748961B1 (en) * 2012-03-26 2015-10-21 Telefonaktiebolaget L M Ericsson (publ) Methods of selecting mimo ranks and related devices
WO2017075803A1 (en) * 2015-11-06 2017-05-11 Qualcomm Incorporated Csi feedback processing and reporting for eb/fd-mimo
US10939419B2 (en) * 2016-09-30 2021-03-02 Qualcomm Incorporated Uplink control information
CN110087155A (zh) 2018-01-25 2019-08-02 中兴通讯股份有限公司 Pon中的编码控制方法、装置、通信设备及存储介质
CN108809605A (zh) * 2018-04-23 2018-11-13 中国科学院自动化研究所 一种基于5g通信网络的信息传输方法及系统
CN112019315A (zh) * 2018-08-08 2020-12-01 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1630380A (zh) * 2003-12-17 2005-06-22 北京三星通信技术研究有限公司 高速率码分多址系统中上行信道增强的上行信令传输方法
CN1691544A (zh) * 2004-04-23 2005-11-02 北京三星通信技术研究有限公司 低速率码分多址系统中上行信道增强的上行信令传输方法
CN101340442A (zh) * 2008-08-07 2009-01-07 中兴通讯股份有限公司 信息复用方法
CN102118237A (zh) * 2010-08-02 2011-07-06 电信科学技术研究院 基于mimo系统的uci处理方法和装置及其传输方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050081566A (ko) * 2004-02-14 2005-08-19 삼성전자주식회사 고속 순방향 패킷 데이터를 전송하는 이동통신시스템에서압축 모드에 따른 복합 재전송을 수행하는 방법
KR101376816B1 (ko) * 2007-04-24 2014-04-01 엘지전자 주식회사 무선통신 시스템에서 제어신호 전송방법
CN101682857B (zh) * 2007-06-15 2013-10-30 捷讯研究有限公司 用于减小链路适配开销的系统和方法
KR101012005B1 (ko) * 2007-12-03 2011-01-31 삼성전자주식회사 광대역 무선통신 시스템에서 전송률 제어 장치 및 방법
TW201531048A (zh) * 2009-03-16 2015-08-01 Interdigital Patent Holdings 具再波聚合及叢集-dft上鏈mimo之資料及控制多工
US9236985B2 (en) * 2009-04-23 2016-01-12 Qualcomm Incorporated Method and apparatus for control and data multiplexing in a MIMO communication system
US8515440B2 (en) * 2010-02-19 2013-08-20 Qualcomm Incorporated Computation of channel state feedback in systems using common reference signal interference cancelation
US8879513B2 (en) * 2010-05-12 2014-11-04 Samsung Electronics Co., Ltd. Uplink transmission apparatus and method for mobile communication system supporting uplink MIMO
US9055572B2 (en) * 2010-06-14 2015-06-09 Sharp Kabushiki Kaisha User equipment, base station apparatus, communication system and mobile communication methods for uplink control information
US8989156B2 (en) * 2010-06-18 2015-03-24 Sharp Kabushiki Kaisha Selecting a codeword and determining a symbol length for uplink control information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1630380A (zh) * 2003-12-17 2005-06-22 北京三星通信技术研究有限公司 高速率码分多址系统中上行信道增强的上行信令传输方法
CN1691544A (zh) * 2004-04-23 2005-11-02 北京三星通信技术研究有限公司 低速率码分多址系统中上行信道增强的上行信令传输方法
CN101340442A (zh) * 2008-08-07 2009-01-07 中兴通讯股份有限公司 信息复用方法
CN102118237A (zh) * 2010-08-02 2011-07-06 电信科学技术研究院 基于mimo系统的uci处理方法和装置及其传输方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3GPP Organizational Partners. Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding.", 3GPP TS 36.212 V8.3.0., May 2008 (2008-05-01), pages 20 - 23, XP050377549 *
See also references of EP2602950A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013125908A1 (ko) * 2012-02-22 2013-08-29 엘지전자 주식회사 제어정보 전송 방법 및 장치
US9674822B2 (en) 2012-02-22 2017-06-06 Lg Electronics Inc. Method and apparatus for transmitting control information

Also Published As

Publication number Publication date
KR20130012137A (ko) 2013-02-01
US20160143024A1 (en) 2016-05-19
CN102118237A (zh) 2011-07-06
EP4307586A2 (en) 2024-01-17
EP2602950A1 (en) 2013-06-12
JP2013538493A (ja) 2013-10-10
EP2602950A4 (en) 2017-10-11
US9210696B2 (en) 2015-12-08
KR101447071B1 (ko) 2014-11-03
EP4307586A3 (en) 2024-04-17
US9532345B2 (en) 2016-12-27
US20130208670A1 (en) 2013-08-15
JP5775159B2 (ja) 2015-09-09
CN102118237B (zh) 2013-06-05

Similar Documents

Publication Publication Date Title
WO2012016516A1 (zh) 基于多输入多输出系统的上行控制信息处理方法和装置及其传输方法
CN111954982B (zh) 无线通信系统和广播系统中使用极性码进行编码和解码的装置和方法
JP2020145719A5 (zh)
US8140944B2 (en) Interleaver design with unequal error protection for control information
CA2718158C (en) Encoding and decoding of control information for wireless communication
KR101922463B1 (ko) 상향링크 다중입력 다중출력을 지원하는 이동 통신 시스템을 위한 상향링크 전송 장치 및 방법
CN101924606B (zh) 基于pusch传输的上行控制信息的发送方法及系统
EP2609701B1 (en) Multiplexing of control and data in ul mimo system based on sc-fdm
CN102104458B (zh) 上行控制信息的传输方法和设备
WO2011124058A1 (zh) 一种在物理上行共享信道传输上行控制信令的系统及方法
WO2011069436A1 (zh) 传输上行控制信息的方法和装置
WO2012019398A1 (zh) 上行控制信令发送、上行解调参考信号的承载方法及装置
EP2572464B1 (en) System and method for signaling control information in a mobile communication network
WO2011160449A1 (zh) 基于pusch传输的上行控制信息的编码方法及系统
TW200847649A (en) Methods and systems for codeword to layer mapping
WO2011054206A1 (zh) 正确/错误应答消息和秩指示信令的编码方法及装置
WO2012041086A1 (zh) 传输周期反馈报告的方法和装置
WO2012062130A1 (zh) 上行控制信息传输方法和系统、编码符号数确定方法和装置
JP2011512100A (ja) 複数の独立情報メッセージを統合して符号化する方法およびシステム
CN107636974B (zh) 信息发送方法和装置、以及信息接收方法和装置
WO2010096970A1 (zh) 一种信息传输方法及装置
WO2011150760A1 (zh) 信息比特的发送方法、装置及系统
WO2011085639A1 (zh) 传输上行信息和处理上行信息的方法、系统及装置
TWI492571B (zh) 用於上行傳輸編碼資訊的通訊裝置及相關的通訊方法
KR101295384B1 (ko) Mimo에서 랭크 피드백 방법

Legal Events

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

Ref document number: 11814099

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20127031270

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2013522092

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 13703628

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2011814099

Country of ref document: EP