WO2011020385A1 - 多天线系统中物理上行控制信道的数据发送方法和装置 - Google Patents

多天线系统中物理上行控制信道的数据发送方法和装置 Download PDF

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WO2011020385A1
WO2011020385A1 PCT/CN2010/074758 CN2010074758W WO2011020385A1 WO 2011020385 A1 WO2011020385 A1 WO 2011020385A1 CN 2010074758 W CN2010074758 W CN 2010074758W WO 2011020385 A1 WO2011020385 A1 WO 2011020385A1
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data
data symbol
time slot
symbol
symbols
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PCT/CN2010/074758
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English (en)
French (fr)
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王瑜新
郝鹏
杨维维
张戎
朱鹏
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中兴通讯股份有限公司
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    • 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
    • H04B7/0667Diversity 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 delayed versions of same signal
    • H04B7/0669Diversity 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 delayed versions of same signal using different channel coding between antennas
    • 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
    • H04B7/0404Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • 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
    • H04B7/0602Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0604Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching with predefined switching scheme
    • 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
    • H04B7/0667Diversity 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 delayed versions of same signal
    • H04B7/0671Diversity 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 delayed versions of same signal using different delays between antennas
    • 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
    • H04B7/068Diversity 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 using space frequency diversity

Definitions

  • the present invention relates to the field of communications, and in particular, to a data transmission method and apparatus for a physical uplink control channel in a multi-antenna system.
  • spatial multiplexing may be used to obtain a higher rate, that is, different antenna positions on the same time-frequency resource at the transmitting end are transmitted differently.
  • Data since each channel can be estimated by channel estimation at the receiving end, even if each antenna transmits different data, after receiving a multiple-input multiple-out-put ( ⁇ ) signal matrix, it can still be received at the receiving end. The transmission data on each antenna is solved.
  • the ⁇ technology includes spatial multiplexing, beamforming, and transmission diversity techniques.
  • the main principle of transmission diversity is to use the weak correlation of the spatial channel, combined with the selectivity in time/frequency, to provide more copies of the signal transmission, improve the reliability of signal transmission, and thus improve the signal-to-noise ratio of the received signal.
  • transmission diversity technologies including transmit diversity, receive diversity, space time block code (STBC), space frequency block code (SFBC), and cyclic delay diversity (Cyclic Delay Diversity, CDD). ) and antenna switching diversity.
  • the Long Term Evolution (LTE) uplink physical channel includes a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), and a physical uplink control channel (PUCCH). ).
  • the PUCCH channel format can be divided into two categories, a total of six types: The first category contains three formats, namely format l, la, lb, and the second category contains three formats, namely format 2, 2a, 2b.
  • the first type of PUCCH is used for transmission scheduling request (SR) and Acknowledgement (ACK)/Negative Acknowledgement (NACK) signaling, where f ormat i is used for transmitting SR and format la for transmission.
  • SR transmission scheduling request
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • the ACK/NACK of the single codeword stream and the format lb are used to transmit the ACK/NACK of the dual codeword stream.
  • the second type of PUCCH is mainly used for a Channel Quality Indicator (CQI), where format 2 only transmits CQI, format 2a is used for simultaneous transmission of CQI and ACK/NACK of single codeword stream, and format 2b is used for simultaneous transmission of CQI. And ACK/NACK for dual code word streams.
  • CQI Channel Quality Indicator
  • the number of resource blocks (RBs) occupied by the first type of PUCCH in one time slot is related to the number of downlink control channel elements (CCEs), which is dynamically changed; the second type of PUCCH is in one time slot.
  • the number of RBs occupied within the cell is notified to all UEs in the cell through the broadcast channel, and is semi-statically configured.
  • the LTE system also defines a hybrid RB, which multiplexes the first type and the second type of PUCCH channels. Whether there are mixed RBs in the system can be configured, and there is at most one mixed RB in one time slot.
  • the PUCCH is located on both sides of the PUSCH band, and the channel structure of the PUCCH is as shown in FIG. 1.
  • Cyclic Prefix (CP) lengths which are Normal Cyclic Prefix (Normal CP) and Extended Cyclic Prefix (Extended CP).
  • Normal Cyclic Prefix Normal CP
  • Extended Cyclic Prefix Extended CP
  • the cyclic prefix of the first symbol in each slot (Slot) occupies 160 samples, and the cyclic prefix of the remaining symbols occupies 144 samples; and for the subframe of Extended CP, The cyclic prefix of each symbol occupies 512 samples, and the interval between Normal CP and Extended CP is 1/30.72us.
  • RS PUCCH channel reference signal
  • DATA data symbol
  • n-r For the PUCCH channel, different users (User Equipment, UE) are multiplexed by means of Code Division Multiplexing (CDM) or Frequency Division Multiplex (FDM).
  • CDM Code Division Multiplexing
  • FDM Frequency Division Multiplex
  • the first type of PUCCH the available resources n-r is represented by three sub-resources (n-cs, n oc, n_PRB), as shown in Figure 3.
  • n_cs represents the cyclic shift sequence ⁇ ij (circular shift, CS ) ⁇ resource
  • sequence number n oc represents the resource number of orthogonal covering ( OC )
  • n—PRB represents a physical resource block (physical resource block, Resource number of PRB).
  • the second type of PUCCH the available resources n-r is represented by two sub-resources (n-cs, n_PRB).
  • the second type of transmission structure is used, and the first type of PUCCH format symbols are modulated to the second guide.
  • the technical problem to be solved by the present invention is to provide a data transmission method and device for a physical uplink control channel in a multi-antenna system, which can simultaneously transmit content of two physical uplink control channel formats by using multiple antennas, thereby effectively improving transmit diversity gain.
  • the present invention provides a data transmission method for a physical uplink control channel in a multi-antenna system, including:
  • the two PUCCH formats are jointly coded; the data obtained by the joint coding is modulated, the modulated data symbols are STBC, and the RS symbols are added and transmitted on the antennas.
  • each subframe includes two time slots, each of which uses a normal cyclic prefix; each time slot contains 5 data symbols, and positions of 2 reference signal symbols are reserved.
  • the orthogonal code is [1 1] [1 -1] and / or [1 j] [l -j]
  • the data symbol pairing manner is any one of the following:
  • Method 1 In each time slot, the first data symbol and the second data symbol are paired, and the third data symbol and the fourth data symbol are paired;
  • the first data symbol and the second data symbol are paired, and the fourth data symbol and the fifth data symbol are paired;
  • Method 3 In the first time slot of each subframe, the first data symbol and the second data symbol are paired, the third data symbol and the fourth data symbol are paired, and the fifth data symbol is followed by the second The first data symbol pair in the time slot, the second data symbol in the second time slot and the third data symbol pair, the fourth data symbol and the fifth data symbol pair;
  • the step of transmitting includes: when pairing is performed, when the pairing is performed, the fifth data symbol in each time slot is sent by using any one of the special diversity modes; when the method is used for pairing, when sending, Transmitting the third data symbol in each time slot by any one of special diversity methods;
  • the special diversity mode includes: cyclic delay diversity, precoding vector switching or frequency switching transmission diversity.
  • the present invention also provides a data transmitting apparatus for a physical uplink control channel in a multi-antenna system, including:
  • a joint coding module configured to: jointly encode data of two PUCCH formats; and a modulation module, configured to: modulate data obtained by joint coding;
  • a diversity module configured to: perform STBC on the modulated data symbols; and a transmitting module, configured to: transmit the STBC data by adding an RS symbol.
  • the modulation module is further configured to: in the output data, each subframe includes two time slots, each time slot adopts a common cyclic prefix; each time slot includes 5 data symbols, and positions of 2 reference signal symbols are reserved. .
  • the sending module is set to: add an RS symbol as follows:
  • Two RS symbols are added to each slot; the time domain extension of the OC code is performed for each of the two RS symbols in each slot.
  • the OC codes used by the transmitting module are [1 1], [1 -1], and/or [1 j], [l -j].
  • the diversity module is further configured to: when performing STBC on the data symbol, pair the data symbols in any of the following manners:
  • Method 1 pairing the first data symbol and the second data symbol in each time slot, and the third data symbol and the fourth data symbol are paired;
  • Method 2 pairing the first data symbol and the second data symbol in each slot (Slot), and matching the fourth data symbol with the fifth data symbol;
  • the third method is to match the first data symbol and the second data symbol in the first time slot of each subframe, the third data symbol and the fourth data symbol are paired, and the fifth data symbol is followed by the second data symbol.
  • the sending module is further configured to: when the diversity module uses the first mode to perform pairing, the fifth data symbol in each time slot is sent by using any one of the special diversity modes; When pairing is performed, the third data symbol in each time slot is transmitted by using any one of special diversity modes; the special diversity mode includes: cyclic delay diversity, precoding vector switching, or frequency switching transmission diversity.
  • the technical solution of the present invention can simultaneously transmit data of two PUCCH formats in a multi-antenna system; the optimization scheme of the present invention uses the PUCCH second-class ordinary CP format to transmit data, and performs time-domain expansion on the RS symbols, so that the user The multiplexing capacity is not reduced.
  • Figure 1 shows the channel structure of the PUCCH
  • Figure 2 shows the distribution of RS symbols in two types of PUCCH channels
  • 3 is a schematic diagram of orthogonal resources
  • Figure 4 shows the basic sequence ⁇ ., plausible of the joint encoder (20, A).
  • Fig. 5 is a schematic block diagram showing a concrete implementation of a data transmitting apparatus for a physical uplink control channel in the multi-antenna system of the second embodiment.
  • the LTE-A system supports the configuration of two uplink and four transmit antennas.
  • the present invention proposes for PUCCH Channel, a solution when the terminal wants to use multiple antennas to simultaneously transmit content in two types of formats.
  • Embodiment 1 The data transmission method of a physical uplink control channel in a multi-antenna system includes: jointly coding data of two PUCCH formats; modulating data obtained by joint coding, and performing STBC on the modulated data symbols. , after adding the RS symbol, send it on each antenna.
  • the (20, A) joint coding may be used, but not limited to, and the implementation details of the joint coding may be combined with the existing LTE system.
  • each subframe includes two time slots, and each time slot has a length of 0.5ms, using ordinary CP, each time slot contains 5 data symbols, reserved for 2 RS symbols; each time slot is the first data symbol, the first RS symbol, the 2nd, 3rd, 4th Data symbols, 2nd RS symbol, and 5th data symbol.
  • the step of adding the RS symbol specifically includes:
  • Two RS symbols are added to each slot; the time domain extension of the OC code is performed for each of the two RS symbols in each slot.
  • the two RS symbols in each time slot are RS-1 and RS-2 respectively, and the OC codes are respectively
  • the two RS symbols transmitted on the first antenna are RS_l*a and RS-2*b, respectively.
  • the two RS symbols transmitted on the second antenna are RS_l*c and RS-2*d, respectively.
  • the case of four antennas can be analogized.
  • the OC code may be, but is not limited to, [1 1], [1 -1], and/or [1 j], [l -j].
  • the manner of pairing the data symbols may be, but not limited to, one of the following:
  • Method 1 In each time slot (Slot), the first data symbol and the second data symbol are paired to perform STBC, and the third data symbol and the fourth data symbol are paired to perform STBC;
  • the first data symbol and the second data symbol are paired to perform STBC, and the fourth data symbol and the fifth data symbol are paired to perform STBC;
  • the first data symbol and the second data symbol are paired to perform STBC, and the third data symbol and the fourth data symbol are paired to perform STBC, and the fifth data symbol is used. Pair with the first data symbol in the second time slot, the second in the second time slot The data symbols are paired with the third data symbol pair, the fourth data symbol, and the fifth data symbol.
  • the fifth data symbol in each time slot is transmitted by any one of the special diversity methods when transmitting; when pairing is performed by the second method, the special diversity mode is used when transmitting A type of transmitting a third data symbol in each time slot.
  • the special diversity mode described above may include, but is not limited to, Cyclic Delay Diversity (CDD), or Precoding Vector Switching (PVS), or frequency switching transmission diversity ( Frequency Switched Transmit Diversity, FSTD ).
  • CDD Cyclic Delay Diversity
  • PVS Precoding Vector Switching
  • FSTD Frequency Switched Transmit Diversity
  • the 1/2/4 data symbols in each time slot may be sent in a special diversity manner, and other data symbols may be paired in pairs.
  • the STBC pairing method will pair two pairs when there are only 4 data symbols in each time slot, and there are 5 data in each time slot.
  • pair in the above manner.
  • a data transmitting apparatus 50 for a physical uplink control channel in a multi-antenna system, as shown in FIG. 5, includes:
  • a joint coding module 51 configured to jointly encode data in two PUCCH formats
  • a modulation module 52 configured to modulate data obtained by joint coding
  • a diversity module 53 configured to perform STBC on the modulated data symbols
  • the sending module 54 is configured to send the STBC data by adding an RS symbol.
  • the joint coding module may be, but is not limited to, jointly coding (20, A), and the specific implementation details may be the same as the joint coding module in the existing LTE system.
  • the data output by the modulation module uses the format2/2a/2b normal CP structure as shown in FIG. 2, that is, each subframe includes two time slots, and each time slot has a length of 0.5 ms.
  • Use normal CP each contains 5 data symbols, and reserve 2 RS symbols; each time slot is the first data symbol, the first RS symbol, the 2nd, 3rd, 4th data symbols, the second RS symbols and 5th data symbols.
  • the sending module plus the RS symbol refers to:
  • the transmitting module adds two RS symbols in each time slot; and performs time domain expansion of the OC code for each of the two RS symbols in each time slot.
  • the OC code used by the transmitting module may be, but not limited to, [1 1], [1 -1], and/or [l j], [1 -j].
  • the diversity module when the diversity module performs STBC on the data symbol, it may be, but is not limited to, pairing the data symbols in any of the following manners:
  • Method 1 Pair the first data symbol and the second data symbol in each slot (Slot), the third data symbol and the fourth data symbol are paired, and the fifth data symbol is used in the special diversity mode. Any one of them;
  • the first data symbol and the second data symbol in each slot (Slot) are paired, the fourth data symbol and the fifth data symbol are paired, and the third data symbol is used in the special diversity mode. Any one of them;
  • the third method is to match the first data symbol and the second data symbol in the first time slot of each subframe, the third data symbol and the fourth data symbol are paired, and the fifth data symbol is followed by the second data symbol.
  • the first data symbol pair in the time slot, the second data symbol in the second time slot is paired with the third data symbol pair, the fourth data symbol and the fifth data symbol.
  • the sending module sends the fifth data symbol in each time slot by using any one of the special diversity modes; when the diversity module uses the second mode to perform pairing, The transmitting module transmits the third data symbol in each time slot in any of the special diversity modes.
  • the special diversity mode described above may include, but is not limited to, Cyclic Delay Diversity (CDD), or Precoding Vector Switching (PVS), or frequency switching transmission diversity ( Frequency Switched Transmit Diversity, FSTD ).
  • CDD Cyclic Delay Diversity
  • PVS Precoding Vector Switching
  • FSTD Frequency Switched Transmit Diversity
  • the diversity module is not limited to the above matching mode, for example, the 1/2/4 data symbols in each time slot may be sent in a special diversity manner, and other data symbols may be paired in pairs.
  • the pairing mode is paired when there are only 4 data symbols in each time slot, and is the above mode when there are 5 data symbols in each time slot.
  • the technical solution of the present invention can simultaneously transmit data of two PUCCH formats in a multi-antenna system; the optimization scheme of the present invention uses the PUCCH second-class ordinary CP format to transmit data, and performs time-domain expansion on the RS symbols, so that the user The multiplexing capacity is not reduced.

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Abstract

本发明公开了一种多天线系统中物理上行控制信道的数据发送方法和装置; 所述装置包括联合编码模块, 其设置为: 对两种上行控制信道 (PUCCH)格式的数据进行联合编码;调制模块,其设置为:对联合编码所得到的数据进行调制;分集模块,其设置为:对调制得到的数据符号进行空时分组编码(STBC);发送模块,其设置为:将经过STBC的数据加上参考信号符号后进行发送。本发明能够采用多天线同时发送两种物理上行控制信道格式的内容,有效提高发射分集增益。

Description

多天线系统中物理上行控制信道的数据发送方法和装置
技术领域
本发明涉及通信领域, 具体涉及一种多天线系统中物理上行控制信道的 数据发送方法和装置。
背景技术
在无线通信中, 如果在发送端和接收端都使用多根天线, 可以釆取空间 复用的方式来获取更高的速率, 即在发射端相同的时频资源上的不同天线位 置发射不同的数据, 由于在接收端可以通过信道估计估计出各个信道, 因此 即使各天线发射不同的数据, 经过多发多收 (Multiple-Input Multiple-Out-put , ΜΙΜΟ)的信号矩阵后, 在接收端仍然能够解出各天线上的发射数据。
ΜΙΜΟ技术包括空间复用、 波束赋形和传输分集技术。 传输分集的主要 原理是利用空间信道的弱相关性, 结合时间 /频率上的选择性, 为信号的传递 提供更多的副本, 提高信号传输的可靠性, 从而改善接收信号的信噪比。 传 输分集技术有艮多, 包括发送分集、 接收分集、 空时分组编码( Space Time Block Code, STBC ) 、 空频块码 ( Space Frequency Block Code , SFBC ) 、 循 环延时分集(Cyclic Delay Diversity, CDD ) 以及天线切换分集等。
长期演进( Long Term Evolution, LTE )上行物理信道包含物理随机接入 信道(Physical Random Access Channel, PRACH ) 、 物理共享信道( Physical uplink shared channel, PUSCH ) 、 物理上行控制信道 ( Physical uplink control channel, PUCCH ) 。 PUCCH信道格式可分为两大类, 共 6种: 第一类包含 3 种格式, 即 format l、 la、 lb, 第二类包含 3种格式, 即 format 2、 2a、 2b。 第一类 PUCCH 用于传输调度请求 (scheduling request , SR )及确认响应 ( Acknowledgement, ACK ) /否认响应 ( Negative Acknowledgement, NACK ) 信令,其中, format i用于传输 SR、 format la用于传输单码字流的 ACK/NACK、 format lb用于传输双码字流的 ACK/NACK。 第二类 PUCCH主要用于传输信 道质量指示( Channel Quality Indicator, CQI ),其中 format 2只传输 CQI, format 2a用于同时传输 CQI和单码字流的 ACK/NACK, format 2b用于同时传输 CQI 和双码字流的 ACK/NACK。
第一类 PUCCH在一个时隙内所占的资源块( resource block, RB )数与 下行控制信道单元的数量( Control Channel Element, CCE )有关, 是动态变 化的;第二类 PUCCH在一个时隙内所占的 RB数通过广播信道通知给小区内 的所有 UE, 是半静态配制的。 另外, 为了避免码资源的浪费, LTE系统还定 义了混合 RB, 复用第一类和第二类 PUCCH信道。 系统中是否存在混合 RB 是可以配制的, 且在一个时隙内, 最多有一个混合 RB。 在普通上行子帧中, PUCCH位于 PUSCH频带的两边, PUCCH的信道结构如图 1所示。
在每一类格式里面, 有两种不同的循环前缀(Cyclic Prefix, CP )长度, 分别是普通循环前缀(Normal Cyclic Prefix, Normal CP )和扩展循环前缀 ( Extended Cyclic Prefix, Extended CP )。 对于 Normal CP的子帧, 每个时隙 ( Slot )里面的第一个符号的循环前缀占用 160个釆样点, 其余符号的循环前 缀占用 144个釆样点; 而对于 Extended CP的子帧,每个符号的循环前缀占用 512个釆样点 , Normal CP和 Extended CP釆样点的时间间隔为 l/30.72us。 对 于不同的 CP长度, PUCCH信道参考信号(Reference Signal, RS )符号和数 据符号 (DATA ) 的数量和所处的位置会有所不同, 各类格式如图 2所示。
对于 PUCCH信道, 不同的用户 ( User Equipment, UE )是通过码分复用 ( Code Division Multiplexing , CDM ) 或者频分复用 ( Frequency Division Multiplex, FDM )的方式进行复用的。 第一类 PUCCH, 可用的资源 n— r由三 个子资源表示 (n— cs, n oc, n_PRB ) , 如图 3所示。 其中 n— cs代表循环移 位序歹 ij ( circular shift, CS ) 々资源、序号, n oc代表正交码 ( orthogonal covering, OC ) 的资源序号, n— PRB代表物理资源块(physical resource block, PRB ) 的资源序号。 例如, 当循环移位的间隔为 1时, 一个物理资源块里面每个符 号有 12条循环移位序列资源, 有 3个正交码, 因此每个 PRB可以复用 12 3=36个 UE; 当循环移位的间隔为 2时, 则每个 PRB可以复用(12/2) 3=18 个 UE。 第二类 PUCCH, 可用的资源 n— r由两个子资源表示( n— cs, n_PRB ) 。
在 LTE系统中, 当存在 PUCCH两类格式的内容需要同时发送时, 对于 Normal CP的子帧, 釆用第二类格式的发送结构, 同时将第一类 PUCCH格式 的符号调制到第二个导频上进行发送; 对于 Extended CP的子帧, 则先将第 二类格式的数据 c0,cl,...,cn和第一类格式的数据 a0(双码字流时则为 aO, al ) 合并为 c0,cl,...cn,a0 , 重新记作 经过(20, A )联合编码 比特的 b0,bl,...bl9, 经过调制后釆用第二类格式
Figure imgf000005_0001
的结构进行发送。 Μι η的取值如图 4所示。
发明内容
本发明要解决的技术问题是提供一种多天线系统中物理上行控制信道的 数据发送方法和装置, 能够釆用多天线同时发送两种物理上行控制信道格式 的内容, 有效提高发射分集增益。
为了解决上述问题, 本发明提供了一种多天线系统中物理上行控制信道 的数据发送方法, 包括:
对两种 PUCCH格式的数据进行联合编码; 对联合编码所得到的数据进 行调制,对调制得到的数据符号进行 STBC,加入 RS符号后在各天线上发送。
所述调制得到的数据符号中, 每个子帧包含两个时隙, 每个时隙釆用普 通循环前缀; 各时隙包含 5个数据符号, 预留 2个参考信号符号的位置。
所述加入参考信号符号的步骤包括:
在每个时隙里加入两个参考信号符号; 对各时隙里的两个参考信号符号 分别进行 OC码的时域扩展。
所述正交码为 [1 1] [1 -1]和 /或 [1 j] [l -j]
对所述数据符号进行 STBC的步骤中, 数据符号配对的方式为以下任一 种:
方式一、 在每个时隙里面, 第 1个数据符号和第 2个数据符号配对, 第 3个数据符号和第 4个数据符号配对;
方式二、 在每个时隙里面, 第 1个数据符号和第 2个数据符号配对, 第 4个数据符号和第 5个数据符号配对;
方式三、 在每个子帧的第一个时隙里面, 第 1个数据符号和第 2个数据 符号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号跟第二 个时隙里面的第 1个数据符号配对, 第二个时隙里面的第 2个数据符号和第 3个数据符号配对、 第 4个数据符号和第 5个数据符号配对;
所述发送的步骤包括: 釆用方式一进行配对时, 发送时釆用特殊分集方 式中的任一种发送各时隙里的第 5个数据符号; 釆用方式二进行配对时, 发 送时釆用特殊分集方式中的任一种发送各时隙里的第 3个数据符号;
所述特殊分集方式包括: 循环延时分集、 预编码向量切换或频率切换传 输分集。
本发明还提供了一种多天线系统中物理上行控制信道的数据发送装置, 包括:
联合编码模块, 其设置为: 对两种 PUCCH格式的数据进行联合编码; 调制模块, 其设置为: 对联合编码所得到的数据进行调制;
分集模块, 其设置为: 对调制得到的数据符号进行 STBC; 以及 发送模块, 其设置为: 将经过 STBC的数据加上 RS符号后进行发送。 所述调制模块还设置为: 输出的数据中, 每个子帧包含两个时隙, 每个 时隙釆用普通循环前缀; 各时隙包含 5个数据符号, 预留 2个参考信号符号 的位置。
所述发送模块是设置为: 按如下方式加上 RS符号:
在每个时隙里加入两个 RS符号; 对各时隙里的两个 RS符号分别进行 OC码的时域扩展。
所述发送模块所釆用的 OC码为 [1 1]、 [1 -1]和 /或 [1 j]、 [l -j]。
所述分集模块还设置为: 对所述数据符号进行 STBC时, 按照以下任一 方式对数据符号进行配对:
方式一、 将每个时隙里的第 1个数据符号和第 2个数据符号配对, 第 3 个数据符号和第 4个数据符号配对;
方式二、将每个时隙 ( Slot )里的第 1个数据符号和第 2个数据符号配对, 第 4个数据符号和第 5个数据符号配对; 方式三、 将每个子帧的第一个时隙里的第 1个数据符号和第 2个数据符 号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号跟第二个 时隙里的第 1个数据符号配对, 第二个时隙里面的第 2个数据符号和第 3个 数据符号配对、 第 4个数据符号和第 5个数据符号配对;
所述发送模块还设置为: 所述分集模块釆用方式一进行配对时, 釆用特 殊分集方式中的任一种发送各时隙里的第 5个数据符号; 所述分集模块釆用 方式二进行配对时, 釆用特殊分集方式中的任一种发送各时隙里的第 3个数 据符号; 所述特殊分集方式包括: 循环延时分集、 预编码向量切换或频率切 换传输分集。
本发明的技术方案能够实现在多天线系统中同时发送两种 PUCCH格式 的数据; 本发明的优化方案釆用 PUCCH第二类普通 CP格式发送数据, 并且 对 RS符号进行了时域扩展, 使得用户的复用容量没有降低。 附图概述
此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中:
图 1示出了 PUCCH的信道结构;
图 2示出了 PUCCH信道两类格式下 RS符号的分布;
图 3为正交资源的示意图;
图 4示出了联合编码器(20, A ) 的基本序列 Μ.,„。
图 5为实施例二的多天线系统中物理上行控制信道的数据发送装置的具 体实施示意框图。 本发明的较佳实施方式
下面将结合附图及实施例对本发明的技术方案进行更详细的说明。
由 LTE演进到 LTE-A ( LTE-Advanced )阶段,为了获取更高的传输速率, LTE-A系统支持上行 2根和 4根发送天线的配置。本发明提出了对于 PUCCH 信道, 当终端要利用多天线同时发送两类格式的内容时的解决方案。
实施例一, 一种多天线系统中物理上行控制信道的数据发送方法, 包括: 对两种 PUCCH格式的数据进行联合编码; 对联合编码所得到的数据进 行调制,对调制得到的数据符号进行 STBC,加入 RS符号后在各天线上发送。
本实施例中, 可以但不限于釆用 (20 , A )联合编码, 联合编码的实现 细节可以同现有的 LTE系统中的联合编码。
本实施例中, 所述联合编码、 调制后得到的数据符号釆用如图 2所示的 format2/2a/2b normal CP结构, 即: 每个子帧包含两个时隙, 每个时隙长度为 0.5ms, 釆用普通 CP, 各时隙包含 5个数据符号, 预留 2个 RS符号的位置; 各时隙中依次为第 1个数据符号、 第 1个 RS符号、 第 2、 3、 4个数据符号、 第 2个 RS符号和第 5个数据符号。
本实施例中, 所述加入 RS符号的步骤具体包括:
在每个时隙里加入两个 RS符号; 对各时隙里的两个 RS符号分别进行 OC码的时域扩展。
比如每个时隙里的两个 RS符号分别为 RS— 1 和 RS— 2 , OC码分别为
OC— l=[a b]和 OC— 2=[c d] , 经过 OC码时域扩展后, 则在第一根天线上发送 的两个 RS符号分别为 RS— l *a和 RS— 2*b,在第二根天线上发送的两个 RS符 号分别为 RS— l *c和 RS— 2*d。 四天线的情况可以类推。
所述 OC码可以但不限于为 [1 1]、 [1 -1]和 /或 [1 j]、 [l -j]。
本实施例中, 对联合编码、 调制后所得到的数据符号进行 STBC时, 数 据符号配对的方式可以但不限于为以下任一种:
方式一、 在每个时隙 ( Slot )里面, 第 1个数据符号和第 2个数据符号配 对做 STBC, 第 3个数据符号和第 4个数据符号配对做 STBC;
方式二、 在每个时隙 ( Slot )里面, 第 1个数据符号和第 2个数据符号配 对做 STBC, 第 4个数据符号和第 5个数据符号配对做 STBC;
方式三、 在每个子帧的第一个时隙里面, 第 1个数据符号和第 2个数据 符号配对做 STBC, 第 3个数据符号和第 4个数据符号配对做 STBC, 第 5个 数据符号跟第二个时隙里面的第 1个数据符号配对, 第二个时隙里面的第 2 个数据符号和第 3个数据符号配对、第 4个数据符号和第 5个数据符号配对。 釆用方式一进行配对时, 发送时釆用特殊分集方式中的任一种发送各时 隙里的第 5个数据符号; 釆用方式二进行配对时, 发送时釆用特殊分集方式 中的任一种发送各时隙里的第 3个数据符号。
本实施例中, 上面所述的特殊分集方式, 可以但不限于包括: 循环延时 分集( Cyclic Delay Diversity, CDD ) 、 或预编码向量切换 ( Precoding Vector Switching, PVS )、或频率切换传输分集 ( Frequency Switched Transmit Diversity , FSTD ) 。
实际应用时不限于以上配对方式,比如可以是各时隙中的第 1/2/4个数据 符号釆用特殊分集方式发送, 其它数据符号两两配对等。
实际应用时, 也不排除釆用其他数据格式发送数据; 釆用其它数据格式 时, STBC配对的方式在各时隙只有 4个数据符号时, 将两两配对, 在各时 隙有 5个数据符号时, 釆用上述方式配对。
实施例二, 一种多天线系统中物理上行控制信道的数据发送装置 50, 如 图 5所示, 包括:
联合编码模块 51 , 用于对两种 PUCCH格式的数据进行联合编码; 调制模块 52, 用于对联合编码所得到的数据进行调制;
分集模块 53 , 用于对调制得到的数据符号进行 STBC;
发送模块 54, 用于将经过 STBC的数据加上 RS符号后进行发送。
本实施例中, 所述联合编码模块可以但不限于釆用 (20, A )联合编码, 其具体实现细节可以同现有的 LTE系统中的联合编码模块。 本实施例中, 所述调制模块输出的数据釆用如图 2所示的 format2/2a/2b normal CP结构, 即: 每个子帧包含两个时隙, 每个时隙长度为 0.5ms, 釆用 普通 CP, 各包含 5个数据符号, 预留 2个 RS符号的位置; 各时隙中依次为 第 1个数据符号、 第 1个 RS符号、 第 2、 3、 4个数据符号、 第 2个 RS符号 和第 5个数据符号。 本实施例中, 所述发送模块加上 RS符号是指:
所述发送模块在每个时隙里加入两个 RS符号;对各时隙里的两个 RS符 号分别进行 OC码的时域扩展。
所述发送模块所釆用的 OC码可以但不限于为 [1 1]、 [1 -1]和 /或 [l j]、 [1 -j]。
本实施例中, 所述分集模块对所述数据符号进行 STBC时, 可以但不限 于按照以下任一方式对数据符号进行配对:
方式一、将每个时隙 ( Slot )里的第 1个数据符号和第 2个数据符号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号釆用特殊分集方式 中的任一种发送;
方式二、将每个时隙 ( Slot )里的第 1个数据符号和第 2个数据符号配对, 第 4个数据符号和第 5个数据符号配对, 第 3个数据符号釆用特殊分集方式 中的任一种发送;
方式三、 将每个子帧的第一个时隙里的第 1个数据符号和第 2个数据符 号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号跟第二个 时隙里的第 1个数据符号配对, 第二个时隙里面的第 2个数据符号和第 3个 数据符号配对、 第 4个数据符号和第 5个数据符号配对。
所述分集模块釆用方式一进行配对时, 所述发送模块釆用特殊分集方式 中的任一种发送各时隙里的第 5个数据符号; 所述分集模块釆用方式二进行 配对时, 所述发送模块釆用特殊分集方式中的任一种发送各时隙里的第 3个 数据符号。
本实施例中, 上面所述的特殊分集方式, 可以但不限于包括: 循环延时 分集( Cyclic Delay Diversity, CDD ) 、 或预编码向量切换 ( Precoding Vector Switching, PVS )、或频率切换传输分集 ( Frequency Switched Transmit Diversity , FSTD ) 。
实际应用时所述分集模块不限于釆用以上配对方式, 比如可以是各时隙 中的第 1/2/4个数据符号釆用特殊分集方式发送, 其它数据符号两两配对等。
实际应用时, 也不排除釆用其他数据格式发送数据; 釆用其它数据格式 时,所述分集模块釆用配对的方式在各时隙只有 4个数据符号时为两两配对, 在各时隙有 5个数据符号时为上述方式。
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。
工业实用性
本发明的技术方案能够实现在多天线系统中同时发送两种 PUCCH格式 的数据; 本发明的优化方案釆用 PUCCH第二类普通 CP格式发送数据, 并且 对 RS符号进行了时域扩展, 使得用户的复用容量没有降低。

Claims

权 利 要 求 书
1、一种多天线系统中物理上行控制信道的数据发送方法,所述方法包括: 对两种物理上行控制信道(PUCCH )格式的数据进行联合编码; 对联合 编码所得到的数据进行调制, 对调制得到的数据符号进行空时分组编码 ( STBC ) , 加入参考信号符号后在各天线上发送。
2、 如权利要求 1所述的数据发送方法, 其中,
所述调制得到的数据符号中, 每个子帧包含两个时隙, 每个时隙釆用普 通循环前缀; 各时隙包含 5个数据符号, 预留 2个参考信号符号的位置。
3、 如权利要求 2所述的数据发送方法, 其中, 所述加入参考信号符号的 步骤包括:
在每个时隙里加入两个参考信号符号; 对各时隙里的两个参考信号符号 分别进行正交码的时域扩展。
4、 如权利要求 3所述的数据发送方法, 其中,
所述正交码为 [1 1]、 [1 -1]和 /或 [1 j]、 [l -j]。
5、 如权利要求 2到 4中任一项所述的数据发送方法, 其中, 对所述数据 符号进行 STBC的步骤中, 数据符号配对的方式为以下任一种:
方式一、 在每个时隙里面, 第 1个数据符号和第 2个数据符号配对, 第 3个数据符号和第 4个数据符号配对;
方式二、 在每个时隙里面, 第 1个数据符号和第 2个数据符号配对, 第 4个数据符号和第 5个数据符号配对;
方式三、 在每个子帧的第一个时隙里面, 第 1个数据符号和第 2个数据 符号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号跟第二 个时隙里面的第 1个数据符号配对, 第二个时隙里面的第 2个数据符号和第 3个数据符号配对、 第 4个数据符号和第 5个数据符号配对;
所述发送的步骤包括: 釆用方式一进行配对时, 发送时釆用特殊分集方 式中的任一种发送各时隙里的第 5个数据符号; 釆用方式二进行配对时, 发 送时釆用特殊分集方式中的任一种发送各时隙里的第 3个数据符号; 所述特殊分集方式包括: 循环延时分集、 预编码向量切换或频率切换传 输分集。
6、一种多天线系统中物理上行控制信道的数据发送装置,所述装置包括: 联合编码模块, 其设置为: 对两种上行控制信道(PUCCH )格式的数据 进行联合编码;
调制模块, 其设置为: 对联合编码所得到的数据进行调制;
分集模块,其设置为:对调制得到的数据符号进行空时分组编码( STBC ); 以及
发送模块, 其设置为: 将经过 STBC的数据加上参考信号符号后进行发 送。
7、 如权利要求 6所述的数据发送装置, 其中,
所述调制模块还设置为: 输出的数据中, 每个子帧包含两个时隙, 每个 时隙釆用普通循环前缀; 各时隙包含 5个数据符号, 预留 2个参考信号符号 的位置。
8、 如权利要求 7所述的数据发送装置, 其中, 所述发送模块是设置为: 按如下方式加上参考信号符号:
在每个时隙里加入两个参考信号符号; 对各时隙里的两个参考信号符号 分别进行正交码的时域扩展。
9、 如权利要求 8所述的数据发送装置, 其中,
所述发送模块所釆用的正交码为 [1 1]、 [1 -1]和 /或 [1 j]、 [l -j]。
10、 如权利要求 7到 9中任一项所述的数据发送装置, 其中, 所述分集 模块还设置为: 对所述数据符号进行 STBC时, 按照以下任一方式对数据符 号进行配对:
方式一、 将每个时隙里的第 1个数据符号和第 2个数据符号配对, 第 3 个数据符号和第 4个数据符号配对;
方式二、 将每个时隙里的第 1个数据符号和第 2个数据符号配对, 第 4 个数据符号和第 5个数据符号配对; 方式三、 将每个子帧的第一个时隙里的第 1个数据符号和第 2个数据符 号配对, 第 3个数据符号和第 4个数据符号配对, 第 5个数据符号跟第二个 时隙里的第 1个数据符号配对, 第二个时隙里面的第 2个数据符号和第 3个 数据符号配对、 第 4个数据符号和第 5个数据符号配对;
所述发送模块还设置为: 所述分集模块釆用方式一进行配对时, 釆用特 殊分集方式中的任一种发送各时隙里的第 5个数据符号; 所述分集模块釆用 方式二进行配对时, 釆用特殊分集方式中的任一种发送各时隙里的第 3个数 据符号; 所述特殊分集方式包括: 循环延时分集、 预编码向量切换或频率切 换传输分集。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9161349B2 (en) * 2010-09-13 2015-10-13 Lg Electronics Inc. Method and device for transmitting control information
CN103167615B (zh) 2011-12-19 2016-03-02 华为技术有限公司 信息的处理方法及装置
CN107317661A (zh) * 2016-04-26 2017-11-03 普天信息技术有限公司 低时延下行通信方法、装置及基站
JP7099681B2 (ja) 2017-01-06 2022-07-12 ホアウェイ・テクノロジーズ・カンパニー・リミテッド アップリンク制御チャネル伝送方法及び装置
US10903969B2 (en) * 2017-03-23 2021-01-26 Apple Inc. Modular control channel formats for uplink control information in a cellular communication system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114956A1 (en) * 2007-03-21 2008-09-25 Samsung Electronics Co., Ltd. Efficient uplink feedback in a wireless communication system
CN101369872A (zh) * 2008-09-12 2009-02-18 中兴通讯股份有限公司 秩指示信息的发送方法和装置
CN101383683A (zh) * 2008-09-22 2009-03-11 中兴通讯股份有限公司 反馈信息的发送方法和装置
CN101442338A (zh) * 2007-11-23 2009-05-27 大唐移动通信设备有限公司 一种时分双工系统的上行控制信令传输方法
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008114956A1 (en) * 2007-03-21 2008-09-25 Samsung Electronics Co., Ltd. Efficient uplink feedback in a wireless communication system
CN101442338A (zh) * 2007-11-23 2009-05-27 大唐移动通信设备有限公司 一种时分双工系统的上行控制信令传输方法
CN101369872A (zh) * 2008-09-12 2009-02-18 中兴通讯股份有限公司 秩指示信息的发送方法和装置
CN101383683A (zh) * 2008-09-22 2009-03-11 中兴通讯股份有限公司 反馈信息的发送方法和装置
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

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