CN101431490A - Pilot frequency insertion method, apparatus, base station and customer equipment of orthogonal frequency division multiplexing system - Google Patents

Pilot frequency insertion method, apparatus, base station and customer equipment of orthogonal frequency division multiplexing system Download PDF

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Publication number
CN101431490A
CN101431490A CN 200710164389 CN200710164389A CN101431490A CN 101431490 A CN101431490 A CN 101431490A CN 200710164389 CN200710164389 CN 200710164389 CN 200710164389 A CN200710164389 A CN 200710164389A CN 101431490 A CN101431490 A CN 101431490A
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China
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block
unit
pilot
pilot symbols
repeated
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CN 200710164389
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Chinese (zh)
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海 唐
孙韶辉
王映民
蔡月民
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大唐移动通信设备有限公司
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Priority to CN 200710164389 priority Critical patent/CN101431490A/en
Publication of CN101431490A publication Critical patent/CN101431490A/en

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    • 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
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

The invention discloses a pilot frequency inserting method for OFDM system comprising: creating basic cell block; inserting at least one dedicated pilot frequency sign at the basic cell block; weighting and duplicating the data cell block and dedicated pilot frequency in the basic cell block to acquire multiple duplicate cell blocks. In the inventive pilot frequency inserting method, dedicated pilot frequency sign or public pilot frequency sign can be conveniently inserted in duplicate cell blocks so that receiving terminal can accurately estimate wireless channel state and channel response according to the pilot frequency sign after receiving duplicate cell blocks so as to correctly detect and demodulate receiving signal. The invention also discloses a pilot frequency inserting device of OFDM system, and a corresponding base station and user equipment.

Description

正交频分复用系统的导频插入方法、装置、基站和用户设备 Orthogonal frequency-division multiplexing method of pilot inserting system, device, base station and user equipment

本申请要求于2007年9月30日提交中国专利局、申请号为200710164201.5、发明名称为"正交频分复用系统的导频插入方法、装置、基站和用户设备"的中国专利申请的优先权,其全部内容通过引用结合在本申请中。 This application claims the priority of September 30, 2007 filed Chinese Patent Application No. 200710164201.5, entitled "orthogonal frequency-division multiplexing method of pilot inserting system, device, base station and user equipment" Chinese Patent Application right, the entire content of which is incorporated by reference in the present application.

技术领域 FIELD

本发明涉及宽带正交频分复用无线移动通信技术,尤其涉及一种正交频分复用系统的导频插入方法和装置,以及一种相应基站和一种用户设备(UE)。 The present invention relates to a broadband orthogonal frequency-division multiplexing wireless mobile communication technology, and particularly relates to an orthogonal frequency division method and apparatus for inserting a pilot multiplexing system, and a corresponding base station and one user equipment (UE).

背景技术 Background technique

目前,在LTE方案中,基本上确定采用正交频分复用(OFDM)技术作为系统空中接口时的基本技术。 Currently, in the LTE scheme, use is determined substantially orthogonal frequency-division multiplexing (OFDM) technology as the basic air interface technology when system.

在OFDM调制方式下,可以在一个OFDM符号中采用多个正交的子载波实现多用户的复用和多址4妄入。 In the OFDM modulation can be employed in a plurality of orthogonal subcarriers of one OFDM symbol multi-user multiplexing and multiple access 4 jump into. 对于OFDM系统,分配的同一小区内各个子载波正交,不存在小区内多址干扰。 For an OFDM system, each subcarrier allocation within the same cell are orthogonal, the inner-cell multiple access interference. 但是,在同频组网的方式下,相邻小区之间的用户,尤其处在小区边缘的用户,如果在相同的时频资源位置发送/ 接收信号,将会产生彼此间的干扰,使得小区边缘的用户的通信质量急剧恶化。 However, in the same frequency networking, the user between adjacent cells, especially in the cell edge user, if the frequency resource location transmitted in the same time / receive signals will interfere with one another, such that the cell a sharp deterioration in the communication quality of the user edge.

为解决上述问题,提出了"块重复多址接入"的方案。 To solve the above problem, a "block repeat multiple access" program. 块重复多址接入方案是一种新的高效的多址接入方案。 Block repeat multiple access scheme is a new efficient multiple access scheme. 基于块重复(BR, Block Repeat)的信息传输可以称之为块重复传输。 Based on Block Repeat (BR, Block Repeat) information transmission can be referred to as block repeat transmission. 基于块重复的多路复用可以称之为块重复复用(BRDM, Block Repeat Division Multiplex )。 Block repeat based multiplexing can be referred to as Block Repeat multiplexing (BRDM, Block Repeat Division Multiplex). 基于块重复的多址接入可以称之为块重复多址接入(BRDMA, Block Repeat Division Multiple Access )。 Block repeat may be called Multiple Access (BRDMA, Block Repeat Division Multiple Access) based on block repeat multiple access. 块重复多址接入方案与OFDM的结合,可以称之为块重复正交频分复用(BR-OFDM)或块重复正交频分多址4妄入(BR-OFDMA)。 Block repeat multiple access scheme in combination with OFDM may be referred to as Block Repeat Orthogonal Frequency Division Multiplexing (BR-OFDM) or Block Repeat-Orthogonal Frequency Division Multiple Access jump into 4 (BR-OFDMA).

在BR-OFDM技术中,将一个数据单元块调制、映射生成一个基本单元块(BU, Block Unit);按重复调制的次数对所述基本单元块进行加权、重复, 获得多个重复单元块。 In BR-OFDM technique, the data of a block unit modulation, mapping to generate a basic block unit (BU, Block Unit); Press the number of modulation repetitions of the basic block unit is weighted repeated to obtain a plurality of repeated block units. 通过将多个加权因子分别与基本单元块中的数据单元块相乘并重复调制,可以获得多个重复单元块,从而实现对多个基本单元块的加权、重复。 By weighting factors are multiplied with a plurality of data element block and the basic unit of block repeat modulation, a plurality of repeated block units can be obtained, thereby realizing weighting a plurality of basic cell blocks is repeated. 其中,所述重复调制的次数称为重复系数(RF, Repeat Factor ), 所述多个加权因子的集合称为块重复加权因子序列或重复码(RC, Repeat Code)序列。 Wherein the number of modulation repetitions is referred to as a repetition factor (RF, Repeat Factor), the plurality of sets of weighting factors referred to as a block repeat weighting factor sequence or repetition code (RC, Repeat Code) sequence.

对于不同的用户,采用不同的RC序列进行加权。 For different users, different RC sequences are weighted. 当有多个用户采用相同的时频资源发送重复块单元时,由于各个用户的RC序列值是彼此不同的, 因此接收端依据不同的RC序列可以对占用相同时频资源的多个用户的重复单元块进行分离。 When there are multiple users transmitting frequency resource block unit repeating the same, since the RC sequence value of each user are different from each other, the receiving end according to the different RC sequences for a plurality of users can occupy the same frequency resource is repeated separation unit block. 这样,就可以降低在同频组网方式下相邻小区用户之间的干扰,提高信号传输的可靠性。 Thus, it is possible to reduce interference between adjacent cells at the same frequency networking users, improving the reliability of signal transmission.

但是,目前还没有提供一种明确的导频插入方法,来解决块重复多址接入方式下的信道估计问题。 However, there is no clear way to provide a pilot insertion, to solve the channel block is repeated multiple access mode estimation.

发明内容 SUMMARY

有鉴于此,本发明解决的技术问题是提供一种正交频分复用系统的导频插入方法,以解决块重复多址接入方式下的信道估计问题。 Accordingly, the present invention is to solve the technical problem of providing a system, an orthogonal frequency division multiplexing method of pilot insertion, repeated channel block to address the multiple access mode under estimation.

本发明要解决的另一个技术问题是提供一种正交频分复用系统的导频插入装置,以及一种相应基站和一种UE。 Another technical problem to be solved by the present invention is to provide an orthogonal frequency-division multiplexing system, a pilot insertion device, and a corresponding base station and one UE.

为此,本发明提供的技术方案如下: To this end, the present invention provides the following technical solution:

一种正交频分复用系统的导频插入方法,包括: An orthogonal frequency division multiplexing method of pilot inserting system, comprising:

生成基本单元块; Generate a basic block unit;

在所述基本单元块插入至少一个专用导频符号; The basic block unit inserting at least one dedicated pilot symbols;

对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块。 The base unit of block data and block units weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.

一种正交频分复用系统的导频插入方法,包括: 对生成的数据单元块加权、重复,获得多个重复数据单元块; 对所述多个重复数据单元块调制、映射生成多个重复单元块; 在所述多个重复单元块中插入/>共导频符号。 An orthogonal frequency division multiplexing method of pilot inserting system, comprising: a weight generation unit block data is repeated to obtain a plurality of repeat data element block; the plurality of repeat data element block modulation, mapping to generate a plurality of repeated block units; inserting the plurality of repeating units in the block /> co-pilot symbols. 一种正交频分复用系统的导频插入装置,包括: An orthogonal frequency division multiplexing system, a pilot insertion device, comprising:

用于在发送端设备生成的基本单元块插入至少一个专用导频符号的专 Designed for insertion into the at least one dedicated pilot symbols in the basic block unit generated by the transmission side apparatus

用导频插入单元;和 Pilot insertion unit; and

用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的第一加权单元。 A first weighting unit in the basic block unit and a data unit block weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.

一种正交频分复用系统的导频插入装置,包括: An orthogonal frequency division multiplexing system, a pilot insertion device, comprising:

用于对发送端设备生成的数据单元块加权、重复,获得多个重复数据单 A weighting block for a data unit transmitting side apparatus generates a repeated to obtain a plurality of repeated data sheet

元块的第二加权单元; The second weighting unit block element;

用于对所述多个重复数据单元块调制、映射生成多个重复单元块的重复 Repeating for the plurality of data block unit modulation, mapping to generate a plurality of repeated block units repeat

单元;和 Unit; and

用于在所述多个重复单元块中插入公共导频符号的公共导频插入单元。 Common pilot for inserting the common pilot symbol in the plurality of blocks of repeating units of pilot inserting unit.

一种基站,包括: A base station, comprising:

用于生成基本单元块的基站基本单元块单元; The base station base unit for generating a basic block unit block unit;

用于在基本单元块插入至少一个专用导频符号的基站专用导频插入单元^ 和 The base station for the dedicated pilot inserting at least one dedicated pilot symbols in the basic block unit and the pilot inserting unit ^

用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的基站第一加权单元。 The base unit for the frequency block and the unit block data weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units to a base station a first weighting unit. 一种基站,包括: A base station, comprising:

用于生成数据单元块的数据单元块单元; Generating a data element block unit block data unit;

用于对数据单元块加权、重复,获得多个重复数据单元块的基站第二加权单元; For weighting the data unit block is repeated to obtain a plurality of data base repeating unit block of the second weighting means;

用于对所述多个重复数据单元块调制、映射生成多个重复单元块的基站重复单元;和 Repeating for the plurality of data block unit modulation, mapping repeating base unit generates a plurality of repeated block units; and

用于在所述多个重复单元块中插入公共导频符号的基站公共导频插入单元。 The base station common pilot for inserting common pilot symbols in the repeated Block Units plurality of pilot insertion unit.

一种用户"i殳备,包括: A user "i Shu apparatus, comprising:

用于生成基本单元块的终端基本单元块单元; A terminal block unit for base unit to generate a basic block unit;

用于在基本单元块插入至少一个专用导频符号的终端专用导频插入单元^ 和用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的终端加权单元。 Terminal dedicated pilot for inserting at least one dedicated pilot symbols in the basic block unit frequency ^ and insertion unit of the basic block unit for the data unit block, and the weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units weighting unit terminal.

可以看出,本发明提供了明确的导频插入方法,从而解决了块重复多址 As can be seen, the present invention provides a clear pilot insertion method, so as to solve the multiple access block repeat

接入方式下的信道估计问题。 Access channel under estimation. 采用所述方法可以方便地在重复单元块中插入 The method employed may conveniently be inserted in the repeated Block Units

专用导频符号或公共导频符号,以便接收端在接收到重复单元块后,就可以根据其中的导频符号准确地估计无线信道的状态和信道响应,/人而能够正确 Dedicated pilot symbols or pilot symbols common to the receiving terminal after receiving the repeated block units, the pilot symbols can be accurately estimated in which a radio channel state and a channel response / person able to correct

地检测和解调接收信号。 Detecting and demodulating the received signal. 附图说明 BRIEF DESCRIPTION

图l是现有的在OFDM调制方式下一个PRB的示意图; 图2是本发明实施例1的流程图; Figure l is a schematic view of a conventional OFDM modulation mode in one PRB; FIG. 2 is a flowchart of an embodiment of the present invention;

图3-la、图3-lb、图3-lc、图3画2a、图3-2b、图3-2c、图3-2d和图3画3 是本发明中在基本单元块中插入导频符号的示意图; 图4是本发明实施例2的流程图; FIGS. 3-la, FIG. 3-lb, FIG. 3-lc, Fig. 3 drawing. 2a, 3-2b, FIG 3-2c, 3-2d FIGS. 3 and FIG. 3 is a drawing of the present invention is inserted into the guide block in the base unit a schematic view of pilot symbols; FIG. 4 is a flowchart of the embodiment 2 of the present invention;

图5是本发明中对一个MIMO天线采用分敉导频设计的示意图; 图6是一种正交频分复用系统的导频插入装置的示意图; 图7是另一种正交频分复用系统的导频插入装置的示意图; 图8是本发明提出的一种基站的示意图; 图9是本发明提出的另一种基站的示意图; 图IO是本发明提出的一种UE的示意图。 FIG 5 is a schematic view of pilot design points Mi in the present invention, a MIMO antenna for use; FIG. 6 is a schematic view of a pilot in an orthogonal frequency multiplexing system partial insertion device; FIG. 7 is another orthogonal frequency division multiplexing insertion device with a schematic view of a pilot guide system; FIG. 8 is a schematic diagram of a base station proposed by the invention; FIG. 9 is a schematic diagram of another base station proposed by the invention; FIG IO is a schematic diagram of a UE according to the present invention is proposed.

具体实施方式 Detailed ways

为使本领域技术人员更好地理解本发明,下面结合实施例1对本发明提供的信号发送方法作具体说明,图2示出了该方法的流程。 To enable those skilled in the art better understand the present invention, the following procedure of Example 1 in conjunction with a signal transmission method of the present invention provides for detailed description, FIG. 2 shows this method. 在步骤21中,将数据单元块调制、映射生成基本单元块。 In step 21, the data block unit modulation, mapping to generate a basic block unit. 其中,基本单元块中包含的数据可映射对应到OFDM调制方式的一个时频资源单元上发送。 Wherein the data block contains the base unit can be mapped on a transmit time-frequency resource units corresponding to an OFDM modulation method. 基本单元块为块重复传输的基本单位。 The basic unit block is the basic unit of block repeat transmission. 基本单元块发送数据对应的OFDM调制的发送时频域资源应该包括至少一个OFDM符号, 或包括至少一个子载波。 OFDM modulated transmission data transmitting unit block corresponding to the basic time-frequency domain resource should include at least one OFDM symbol, or comprising at least one subcarrier. 基本单元块可以是预先配置的,也可以根据具体的策略动态地设置。 Basic block unit may be preconfigured, may be provided according to a specific strategy dynamically. 预先配置固定的基本单元块,其好处在于可以P争低系统运行时的处理复杂度。 Fixed pre-configured basic block unit, which may be P indisputable advantage in that the processing complexity of the system is running low. 基本单元块的大小可以视具体情况确定,但为了与现有 The size of the basic block unit is determined as the case may be, but prior to

的OFDM系统更好地兼容,可直接以现有OFDM系统的一个物理资源块(PRB , Physical Resource Block)作为一个基本单元块,或者以整数个连续的PRB组成一个基本单元块。 Better compatibility OFDM systems, may be a physical resource block in existing OFDM systems (PRB, Physical Resource Block) as a basic block unit directly, or to an integer consecutive PRB form a basic block unit.

在步骤22中,在基本单元块插入至少一个专用导频符号。 In step 22, the basic block unit is inserted at least one dedicated pilot symbols.

专用导频符号是指,专用于某个用户或某组用户进行信道估计的导频符号,其他用户无法使用该导频符号。 Refers to a dedicated pilot symbol, dedicated pilot symbols for channel estimation in a user or a group of users, the other users can not use the pilot symbols. 专用导频符号可以用于BR-OFDM的上行和下行数据传输的信道估计。 Channel-specific pilot symbols may be used for upstream and downstream data transmission of the BR-OFDM estimates.

可以看出,发送端在基本单元块插入专用导频符号后,接收端在接收到基本单元块后,就可以根据其中的专用导频符号准确地估计无线信道的状态和信道响应,从而能够正确地检测和解调接收信号。 As can be seen, the transmitting end into the dedicated pilot symbols in the basic block unit, the receiving terminal after receiving the basic block unit, may according to one of the dedicated pilot symbols to accurately estimate the radio channel state and channel response can be accurately detecting and demodulating the received signal.

其中,为了使基本单元块中的数据基本单元块具有自包含检测和解调特性,需要在每一个基本单元块中插入至少一个专用导频符号。 Wherein the block data in order to make the base unit the base unit has a self-contained block detection and demodulation characteristics, need to insert the at least one dedicated pilot symbols in each elementary cell block.

在基本单元块中插入多个专用导频符号的方式包括但不限于以下几种: A plurality of dedicated pilot symbols inserted in the basic unit block including but not limited to, the following:

a、 在基本单元块中同一OFDM符号的至少一个子载波上插入专用导频符号,图3-la、 3-lb和3-lc分别是该方式的三个示意图; a, at least a subset of the same OFDM symbols dedicated pilot symbols inserted into the base unit on the carrier block, FIGS. 3-la, 3-lb and 3-lc are three schematic of the embodiment;

b、 在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号,图3-2a、 3-2b、 3-2c和3-2d分别是该方式的四个示意图; B, at least one block inserted into the base unit on the same sub-carrier OFMD symbols dedicated pilot symbols, FIG. 3-2a, 3-2b, 3-2c and 3-2d are four schematic of the embodiment;

c、 在基本单元块的多个OFDM符号的不同子载波上插入专用导频符号, 图3-3是该方式的一个示意图。 C, dedicated pilot symbols inserted in a plurality of different subcarriers of OFDM symbols of the basic cell block 3-3 is a schematic diagram of the embodiment.

示意图中的阴影部分表示专用导频符号,图3-la、 3-lb所示的导频插入方式可以称为块状导频,图3-2a、 3-2b所示的导频插入方式可以称为梳状导频,图3-2d、 3-3所示的导频插入方式可以称为分歉式导频。 Hatched portion represents a schematic view of the dedicated pilot symbols, FIGS. 3-la, pilot insertion embodiment shown in 3-lb pilot block may be referred to, FIG. 3-2a, 3-2b pilot insertion guide shown in ways called pilot comb, FIG. 3-2D, the pilot insertion shown in formula 3-3 may be referred to as a pilot sub apology.

所述块状导频是指,周期性地在特定OFDM符号的所有子载波插入导频符号。 It refers to the bulk pilot, pilot symbol periodically inserted in all sub-carriers of a particular OFDM symbol. 块状导频的插入方式适用于慢衰落高频率选择性的无线信道中。 Pilot block is inserted in a manner suitable for high frequency selective slow fading wireless channels. 采用块状导频时,由于专用导频符号被包含在所有的子载波,接收端不需要进行频域内的插值,所以对信道的频率选择性不敏感。 When using a pilot block, the frequency selective channel is not sensitive due to the dedicated pilot symbols are included in all subcarriers, the receiving end does not need to be interpolated in the frequency domain.

所述梳状导频是指,在所有OFDM符号的同一子载波均匀地插入导频符号。 The pilot comb means, uniformly inserting a pilot symbol in the same sub-carriers of all OFDM symbols. 梳妆导频在快衰落信道下估计的效果更好。 Dressing pilot estimation in fast fading channels the better. 但是在梳妆导频的情况下, 非导频子载波上的信道特性只有根据导频子载波上的信道特性的插值才能得到,所以梳状导频对信道的频率选择性衰落比较敏感。 However, in the case where dressing pilot, non-conduction channel characteristics pilot subcarriers only obtained by interpolation to the channel characteristics on the pilot sub-carriers, the pilot comb fading sensitive to frequency selectivity of the channel.

所述分散式导频是指,导频符号被^地放置在基本单元块的时频资源位置。 The distributed pilot refers to a pilot symbol ^ is positioned at a substantially frequency resource block unit. ^式频域的一个基本准则是,在时间间隔上小于信道的相干时间, 在频率间隔上小于信道的相干带宽。 A basic principle of formula ^ is the frequency domain, over a time interval less than the coherence time of the channel, less than the coherence bandwidth of the channel in the frequency interval.

为了4t基本单元块具有自包含检测和解调特性,对块状导频而言需要在至少一个OFDM符号中插入导频符号,对梳状导频而言需要在至少一个子载波上插入导频符号,对^式导频而言需要在至少一个时频资源位置插入导频符号。 To 4t basic block unit having a self-contained detection and demodulation characteristics, in terms of the block-type pilot symbols need to be inserted in at least one pilot OFDM symbol, a pilot comb inserting a pilot needs in terms of at least one subcarrier symbols, terms of ^ formula pilot insertion guide requires at least one time-frequency resource position pilot symbols.

在一个基本单元块内,也可以插入不同用户的专用导频。 In a basic block unit may be inserted into a different user dedicated pilot. 同一基本单元 The same basic unit

块内不同用户的专用导频可以采用时分复用(TDM)、频分复用(FDM)或码分复用(CDM)这几种方式来保持正交性。 Within a block of user dedicated pilot frequency may be different Time Division Multiplexing (TDM), frequency division multiplexing (FDM), or code division multiplexed (CDM), which are several ways to maintain orthogonality.

在TDM方式下,不同用户的专用导频符号被插入不同的OFDM符号; 在FDM方式下,不同用户的专用导频符号被插入不同的子载波;在CDM方式下,不同用户的专用导频符号在时频资源位置上是重叠的,但各专用导频符号可以分别与不同的正交序列相乘,得到彼此正交的导频序列,从而降低各专用导频符号间的干^L。 In TDM mode, dedicated pilot different users pilot symbols are inserted into different OFDM symbols; in FDM mode, dedicated pilot different users pilot symbols are inserted into different sub-carriers; in CDM mode, dedicated pilot different users pilot symbols in the time-frequency resource position overlap, but the respective dedicated pilot symbols can be multiplied respectively different orthogonal sequences to obtain orthogonal pilot sequences to one another, thereby reducing the dry between each dedicated pilot symbols ^ L.

在步骤23中,对所述基本单元块中的数据单元块和专用导频符号加权、 重复,获得多个重复单元块。 In step 23, the basic unit of block data and block units weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.

其中,应该按重复系数对基本单元块加权、重复,获得RF个重复单元块。 Wherein, should a repeating unit of the basic block of weighting coefficients, repeated, obtaining an RF block of repeating units.

其中,利用RC序列中的加权因子对基本单元块中的数据单元块和专用 Wherein RC sequence using the weighting factor of the basic unit block and a dedicated data unit block

导频符号加权。 Weighted pilot symbols. 该RC序列中应该包括RF个加权因子(d、 C2........ Crf), The sequence should include RC RF weighting factors (d, C2 ........ Crf),

例如当RF-4时,RC中应该包括4个加权因子(d、 C2、 C3和CJ。釆用4 When, for example, when RF-4, RC should include four weighting factors (d, C2, C3, and CJ. Preclude the use of 4

个加权因子对基本单元块加权重复后,即将d、 C2、 C3和C4分别与基本单 Weighting factor for weighting and repeating the basic block unit, i.e. d, C2, C3 and C4 and essentially single

元块相乘,可以获得4个加权后的块重复单元。 Metablock can be multiplied by four to obtain a weighted block repeating unit. 所述4个块重复单元可以分别用BU1、 BU2、 BU3和BU4表示。 The four block repeating units may be used separately BU1, BU2, BU3 and BU4 FIG. d与基本单元块中的数据单元块和专用导频符号相乘,可以获得BU1; C2与基本单元块中的数据单元块和专用导频符号相乘,可以获得BU2; C3与基本单元块中的数据单元块和专用导频符号相乘,可以获得BU3; C4与基本单元块中的数据单元块和专用导频符号相乘,可以获得BU4。 d the base unit block data unit block and dedicated pilot symbols are multiplied, may be obtained BU1; C2 basic unit block data unit block and dedicated pilot symbols can be multiplied to obtain BU2; C3 basic unit block the unit block data and dedicated pilot symbols can be multiplied to obtain BU3; C4 basic unit block data unit block and dedicated pilot symbols can be multiplied to obtain BU4.

还需要指出的是,RF可以是预先确定的,也可以是根据信源/信it/用户的情况和要求而变化的。 Also it is noted that, the RF may be determined in advance, or may be in accordance with the source / channel it / user requirements and circumstances change. 例如,确定RF的因素包括:系统的资源占用情况(包括时频和功率资源)、信源的传输速率、信道条件(包括信号和干扰)等等。 For example, the determining factor RF comprising: resource consumption (including power and time-frequency resource) system, the transmission rate of the source, channel conditions (including signal and interference) and the like. 另外,所述RF的变化既可以受用户的控制,也可以受系统的控制。 Further, changes in the RF may be controlled by the user, the system may be controlled.

可以看出,实施例1所示出的导频符号插入方法既适用于网络侧也适用于UE。 As can be seen, a pilot symbol insertion method embodiment illustrated in Example 1 both for the network side is also applicable to UE.

在发送下行信号时,发送端为网络侧,网络侧确定RC序列后可以通过广播或控制信道将RC序列的信息、发送重复单元块所在的时频资源位置、 块重复图样、专用导频配置信息以及其它相关控制信息预先通知相关UE, 从而使所述UE可以接收重复单元块,并利用的所述RC序列对各重复单元块中的数据单元块进行加权、合并。 After sending the downlink signal, the transmitting end is the network side, the network side is determined by the RC sequences may be broadcast or control channel information RC sequences, when the cell block where repeating transmission frequency resource position, block repeat pattern, special pilot arrangement information and other related control information in advance notify UE, so that the UE may receive repeated block units, and each repeating cell block to data block units is weighted using the combined RC sequence. 所述UE也可以对接收到的多个块重复单元中的专用导频符号进行逆运算,获得用于加权专用导频符号的RC序列, 也就是用于加权数据单元块的RC序列,在这种情况下,网络侧可以不将所述RC预先通知UE。 The UE may also be a plurality of abutting blocks of dedicated pilot symbols received repeat unit performs an inverse operation to obtain a RC sequence for weighted dedicated pilot symbol, i.e. a RC sequence for weighted data unit block, in which the case, the network side may not notify in advance the RC UE.

UE逆运算获得用于加权专用导频符号的RC序列,其过程包括: UE an inverse operation to obtain a RC sequence for weighting the dedicated pilot symbols, which process comprises:

据比照结果逆运算获得对专用导频符号加权的RC序列。 According to the calculation result of the inverse cf. obtained RC sequence weighted dedicated pilot symbols.

例如,1正接收到的专用导频符号为{1, -1, -1, 1},而其通过专用导频配置信息获得的未加权情况下的专用导频符号为(l, 1, 1, 1},则通过比照、 逆运算可以获得对专用导频符号{1, 1, 1, 1}进行加权的RC序列为(1, 隱l, -1, 1)。 For example, n-1 received dedicated pilot symbols {1, -1, -1, 1}, and configured by dedicated pilots dedicated pilot symbols in the case where information is not obtained for the weighting (L, 1, 1 , 1}, is by contrast, reverse operation may be obtained dedicated pilot symbols {1, 1, 1, 1} RC sequence is weighted (1, hidden l, -1, 1).

在实施例l中,在生成基本单元块时插入的是专用导频符号,然后对整个基本单元块进行加权。 In Example l, the inserted when generating the basic block unit is dedicated pilot symbols, then the entire basic block unit is weighted. 在实际应用中,由于公共导频符号是全向发送的, In practice, since the common pilot symbol is transmitted to the whole,

因此,对于公共导频符号不必采用RC序列进行加权重复。 Thus, to the common pilot symbol does not need an RC repeat weighting sequences. 下面结合实施例2对公共导频符号的插入方法作进一步具体说明,图4示出了该方法的流程。 The following embodiments in conjunction with the method of Example 2 is inserted into a common pilot symbol is described more specifically, FIG. 4 shows a flow of the method. 在步骤41中,对生成的数据单元块加权、重复,获得多个重复数据单元块。 In step 41, the data generated by the weighting unit block, is repeated to obtain a plurality of repeat data element blocks.

其中,应该按重复系数对数据单元块加权、重复,获得RF个重复数据单元块。 Wherein, should a repeating unit of data block weighting coefficient is repeated to obtain a repeat data element blocks RF.

可以利用预先设置的RC序列对数据单元块进行加权、重复。 RC can be set using a predetermined sequence of the data unit block is weighted repeated. 对数据单元块进行加权、重复的方式与实施例1中所述的对基本单元块加权、重复的方式相同,这里不再赘述。 And, in the same manner weighting block data units, in repeating Example 1 of the basic unit of block repeat weighting manner, it is not repeated here.

在步骤42中,对所述多个重复数据单元块调制、映射生成多个重复单元块。 In step 42, the repeat data unit block of the plurality of modulation, mapping to generate a plurality of repeated block units.

在步骤43中,在所述多个重复单元块中插入/>共导频符号。 In step 43, is inserted in the plurality of blocks of repeating units /> co-pilot symbols.

其中,为了使重复单元块具有自包含检测和解调特性,需要在一个重复单元块中插入至少一个公共导频符号。 Wherein, in order from the block having a repeating unit comprising detection and demodulation characteristics, need inserting at least one pilot symbol in a common repeating unit block.

在一个重复单元块中插入公共导频符号的方式与实施例1中所述的在一个基本单元块中插入专用导频符号的方式相同,这里不再赘述。 In one repeating unit is inserted in a manner common pilot block symbols as in Example 1 to the base unit in a block mode dedicated pilot symbols inserted into the same, is omitted here.

这里还需要说明的是,如果一个重复单元块所占用的时频资源小于现有的OFDM调制方式下的一个PRB,则也可以PRB为单位,在每个PRB内插入至少一个^^共导频符号即可,而无需在每个重复单元块中都插入/>共导频符号。 There is also to be noted that, when a repeated block units if the frequency resources occupied by less than one PRB under conventional OFDM modulation scheme, the PRB is a unit may be inserted in each PRB at least one common pilot ^^ symbol 10 is unnecessary is inserted in each of the repeated block units /> co-pilot symbols.

实施例1和实施例2分别^是供了一种明确的导频插入方法,接收端利用插入的导频符号可以准确地估计无线信道的状态和信道响应,/人而能够正确地检测和解调接收信号。 Example 1 and Example 2, respectively, for ^ is a clear pilot insertion method, the receiving side using the pilot symbols can be inserted accurately estimated radio channel state and channel response / person can be accurately detected reconciliation modulated received signal.

需要指出的是,对于蜂窝移动通信系统而言,相邻小区间的干扰会降低系统的性能。 It is noted that, for a cellular mobile communication system, interference between adjacent cells can degrade system performance. 因此在信道估计中,为了减少相邻小区的干扰,无论是专用导频的设计还是公共导频的设计都需要仔细考虑。 Therefore, channel estimation, in order to reduce interference to neighboring cells, either dedicated or common pilots Pilot Design Design requires careful consideration. 相邻小区发送信号时,可以采用以下几种方式插入导频符号,以进一步降低相邻小区间的相互干扰。 When the transmission signals of adjacent cells, the following may be used a pilot symbol is inserted, to further reduce interference between adjacent cells. This

时分复用(TDM)方式: Time Division Multiplexing (TDM) mode:

相邻的两个小区的导频符号应该^皮插入不同的OFDM符号,由于两个小区的导频符号在时间上不重叠,从而可以保持正交,降低相互间的干扰。 Cells of two adjacent pilot symbols should be inserted percutaneously ^ different OFDM symbols, since the pilot symbols of the two cells do not overlap in time, can be maintained orthogonal to reduce mutual interference. 对于被其他小区占用的OFDM号,本小区可以利用该OFDM符号传输数据。 For OFDM cells occupied by other numbers, the present cell can use the OFDM symbol transmission data.

为了进一步降低对导频符号的干扰,也可以不传输数据,该OFDM符号被空置。 In order to further reduce interference to the pilot symbols, data may not be transmitted, the OFDM symbols are vacant.

TDM方式主要针对块状导频和分歉式导频而设计。 Mainly for the TDM pilot and block division type pilot design apology. 频分复用(FDM)方式: Frequency division multiplexing (FDM) mode:

相邻的两个小区的导频符号被插入不同的正交的子载波,由于两个小区的导频符号通过频域正交,因此可以降低相互间的干扰。 Cells of two adjacent pilot symbols inserted into different subcarriers are orthogonal, since the pilot symbols of two cells by orthogonal frequency domain, it is possible to reduce mutual interference. 对于被其他小区占用的子载波,本小区可以利用该子载波传输数据。 For the subcarriers are occupied by other cells, the cell can use this sub-carriers to transmit data.

为了进一步降低对导频符号的干扰,也可以不传输数据,该子载波被空置。 In order to further reduce interference to the pilot symbols, data may not be transmitted, the subcarriers are vacant.

FDM方式主要针对梳状导频和^t式导频而设计。 FDM scheme primarily for comb-type pilots and pilots ^ t designed. 码分复用(CDM)方式: Code Division Multiplexing (CDM) manner:

相邻的两个小区的导频符号如果净皮插入相同的时频资源位置,将导致小区间的导频符号在同步系统中是重叠的。 Cells of two adjacent pilot symbols inserted into the skin if the net time-frequency resource in the same position, the pilot symbols will lead to the inter-cell synchronous system overlap. 此时,可以设置一个正交序列集合S = {S】,S2,……,Sk},包含有k个正交序列,每个正交序列为& = [Si—f , SL2 ,……, Si,], lSi^k。 In this case, a set of orthogonal sequence set S = {S}, S2, ......, Sk}, comprises k orthogonal sequences, each orthogonal sequence & = [Si-f, SL2, ......, si,], lSi ^ k. 不同小区的导频序列选择其中一个正交序列Si进行相乘,得到一个加权的导频序列,由于Si序列的正交性,不同小区的导频符号可以减少相互间干扰。 Different cell pilot pilot sequence wherein a selected orthogonal sequence Si multiplied to obtain a weighted pilot sequence, due to the orthogonality of the sequences Si, cells of different pilot symbols may reduce mutual interference.

可以看出,在相邻小区之间,TDM、 FDM和CDM这三种插入导频符号的方式既可以只使用其中的一种,也可以组合使用,这里不再赘述。 It can be seen between the neighboring cells, TDM, FDM and CDM pilot symbols inserted into the three way may be to use only one of them may be used in combination, will not be repeated here.

在BR-OFDM系统中使用导频符号,还需要考虑多天线的情况。 Using pilot symbols BR-OFDM systems, also we need to consider the case of multiple antennas. 在目前的宽带通信系统中,为了增加系统容量,通常采用多根天线发送数据,从而提高系统传输能力,典型的应用是多输入多输出(MIMO)技术。 In current broadband communication systems, in order to increase system capacity, usually a plurality of antennas transmits data to improve system transmission capability, typical application is Multiple Input Multiple Output (MIMO) technology.

在MIMO技术中,天线可以分为虚拟天线和物理天线,所谓的虛拟天线是指接收端需要区分发送端的天线数目,而物理天线指发送端在发送数据时候实际使用的实物天线的数目。 In the MIMO technology, the antenna may be divided into virtual and physical antennas an antenna, a so-called virtual antennas refer to the number of antennas necessary to distinguish between the receiving end of the transmission side, and the physical antennas refer to the number of physical antennas in the transmitting side transmits data when in actual use. 为了能够准确地对不同天线发送的数据进行检测和解调,接收端需要能够单独地估算出发送端到接收端的每根虚拟天线发送数据的信道信息。 In order to accurately detect and demodulate the data sent by different antennas, the receiving side needs to be able to independently estimate each virtual antenna transmission to receiver channel information transmitted data. 因此,每根虚拟天线都需要单独的导频来区分。 Thus, each virtual antenna requires a separate pilot distinguished. 其不同虚拟天线的导频可以采用TDM、 FDM或CDM方式来区分。 Their different virtual antennas can be distinguished using the pilot TDM, FDM or CDM system. 釆用TDM方式插入导频符号时,同一小区的下4亍传输中,每根天线都有单独的导频符号,天线间的导频符号被插入不同的OFDM符号中,通过时间上的不重叠来保持正交性。 When inserting a pilot symbol TDM manner with Bian, the transmission of the same cell 4 in the right foot, each antenna has a separate pilot symbols, the pilot symbols are inserted between the antennas in different OFDM symbols do not overlap temporally by to maintain orthogonality.

釆用FDM方式插入导频符号时,同一小区的下4亍传输中,每根天线都有单独的导频符号,天线间的导频符号被插入不同的子载波,通过频域上的不重叠来保持正交性。 When inserting pilot symbols Bian (FDM) manner, the transmission of the same cell 4 in the right foot, each antenna has a separate pilot symbols, the pilot symbols are inserted between the antennas different subcarriers do not overlap in the frequency domain by to maintain orthogonality.

采用CDM方式插入导频符号时,同一小区的下朽-传输中,所有天线的导频符号被插入相同的时频资源位置,但各天线的导频符号与不同的正M 列相乘,可以得到相互正交的导频符号。 When using CDM pilot symbol is inserted, the same cell rot - transmission, pilot symbols of all antennas are inserted into the same frequency resource time, but the pilot symbols for each antenna are multiplied with different positive M columns, may obtained mutually orthogonal pilot symbols. 每才艮天线的导频可以选择其中的一个正交导频符号,通过码分的形式来保持多天线导频符号的正交,从而使得接收端能够根据正交的导频符号来估计信道信息。 Each antenna was Gen pilot may select one of the orthogonal pilot symbols, to maintain a multi-antenna orthogonal pilot symbols in the form of code division, so that the receiving end can estimate the channel information according to the orthogonal pilot symbols .

对于BR-OFDM系统,在自包含的导频设计方式下,如果基本单元块可以表示为Nb = NbtxNbf, Nbt为OFDM符号的个数、Nbf为子载波的个数,则对于块状导频设计,在Nbt个OFDM符号中都必须有每根虚拟天线对应的导频符号;对于梳状导频设计,则在Nbf个子载波中都必须有每根虚拟天线对应的导频符号;对于分敉式导频设计,则在Nbt个OFDM符号或者Nbf个子载波中有每根虚拟天线对应的导频符号。 For BR-OFDM system, in the self-contained pilot design approach, if the basic block unit may be represented as the number Nb = NbtxNbf, Nbt an OFDM symbol, Nbf is the number of subcarriers, the block-type pilot design for in Nbt OFDM symbols must be present in each virtual antennas corresponding to the pilot symbol; for pilot comb design, it must have each of the virtual antennas corresponding to pilot symbols Nbf subcarriers; for points Mi formula pilot design, there is a virtual antennas corresponding to each pilot symbols Nbt Nbf OFDM symbols or subcarriers. 导频符号可以采用TDM、 FDM和CDM方式进行复用。 Pilot symbols may be employed TDM, FDM and CDM multiplexing manner.

图5示出了一个2x2的MIMO采用M导频的设计。 FIG. 5 shows a 2x2 MIMO with M pilot design. 图6所示的基本单元块包括4个OFDM符号和4个子载波,共16个时频资源位置。 The basic unit block shown in Figure 6 comprises four OFDM symbols and 4 subcarriers, a total of 16 time-frequency resource position. 在基本单元块的4个时频资源位置分别插入了4个导频符号,共占用了两个OFDM 符号中的两个子载波。 When the basic unit of frequency resource block 4 are inserted positions of the four pilot symbols, it occupies a total of two subcarriers of two OFDM symbols. 频域上的导频符号密度与单天线相同。 Single pilot symbol density in the frequency domain the same antenna. 由于在两个OFDM符号插入导频符号,因此,天线1可以选择导频符号1作为其导频符号,天线2可以选择导频符号2作为其导频符号。 Since the two pilot symbols inserted into the OFDM symbols, thus, can select the antenna 1 pilot symbol as a pilot symbol 1, the antenna 2 may be selected as the pilot symbol 2 pilot symbols. 同时,两个OFDM符号内的导频符号也可以与一个长度为2的正交序列相乘,通过不同的正交序列来区分天线1和天线2。 Meanwhile, the pilot symbols in two OFDM symbols may be orthogonal sequence with a length of 2 multiplied to antennas 1 and 2 distinguished by different orthogonal sequences.

基于上述导频插入方法,本发明还提出了相应的导频插入装置。 Based on the above pilot insertion method, the present invention also proposes a corresponding pilot insertion device. 图6是一种正交频分复用系统的导频插入装置的示意图,图6所示的装置包括专用导频插入单元S61和第一加权单元S62。 FIG 6 is a schematic diagram of an orthogonal frequency multiplexing system pilot sub-insertion device, the device shown in Figure 6 comprises a dedicated pilot insertion unit S61 and the first weighting unit S62. 专用导频插入单元S61用于在发送端设备生成的基本单元块插入至少一个专用导频符号;第一加权单元S62用于对所述基本单元块中的数据单元块和专用导频符号加^C、重复,获得多个重复单元块。 S61 dedicated pilot insertion unit for inserting at least one dedicated pilot symbols in the basic block unit generated by the transmitting device; a first weighting unit S62 of the basic block unit for the data unit block, and dedicated pilot symbols plus ^ C, is repeated to obtain a plurality of repeated block units.

专用导频插入单元S61可以在基本单元块中同一OFDM符号的至少一个子载波上插入专用导频符号,图3-la、 3-lb和3-lc分别是该方式的三个示意图; Dedicated pilot insertion unit S61 may be at least one sub same OFDM symbol of the dedicated pilot symbols inserted in the basic carrier unit block, FIGS. 3-la, 3-lb and 3-lc are three schematic of the embodiment;

专用导频插入单元S61也可以在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号,图3-2a、 3-2b、 3-2c和3-2d分别是该方式的四个示意图; Dedicated pilot insertion unit S61 may be inserted on the same dedicated pilot symbols of at least one subcarrier OFMD symbol in the basic block unit, FIG. 3-2a, 3-2b, 3-2c and 3-2d are four of the embodiment schematic diagram;

或者,专用导频插入单元S61还可以在基本单元块的多个OFDM符号的不同子载波上插入专用导频符号,图3-3是该方式的一个示意图。 Alternatively, the dedicated pilot insertion unit S61 may also be inserted into the dedicated pilot symbols on different subcarriers of OFDM symbols of a plurality of basic cell block 3-3 is a schematic diagram of the embodiment.

第一加权单元S62将RC序列中的各加权因子分别与所述多个基本单元块中的数据单元块和专用导频符号相乘并重复调制,以分别对所述多个基本单元块中的数据单元块和专用导频符号加权、重复。 S62 the first weighting unit for each RC sequence weighting factors respectively to the plurality of basic cell blocks in the unit block data and dedicated pilot symbols are multiplied and repeat modulation, respectively, to the plurality of basic cell blocks blocks of data elements and the weighted dedicated pilot symbol is repeated.

在BR-OFDM系统中使用导频符号,还需要考虑多天线的情况。 Using pilot symbols BR-OFDM systems, also we need to consider the case of multiple antennas. 在目前的宽带通信系统中,为了增加系统容量,通常釆用多根天线发送数据,从而提高系统传输能力,典型的应用是多输入多输出(MIMO)技术。 In current broadband communication systems, in order to increase system capacity, data transmission typically preclude a plurality of antennas, thereby increasing transmission capacity of the system, typical application is Multiple Input Multiple Output (MIMO) technology.

在MIMO技术中,天线可以分为虚拟天线和物理天线,所谓的虚拟天线是指接收端需要区分发送端的天线数目,而物理天线指发送端在发送数据时候实际使用的实物天线的数目。 In the MIMO technology, the antenna may be divided into virtual and physical antennas an antenna, a so-called virtual antennas refer to the number of antennas necessary to distinguish between the receiving end of the transmission side, and the physical antennas refer to the number of physical antennas in the transmitting side transmits data when in actual use. 为了能够准确地对不同天线发送的数据进行检测和解调,接收端需要能够单独地估算出发送端到接收端的每根虚拟天线发送数据的信道信息。 In order to accurately detect and demodulate the data sent by different antennas, the receiving side needs to be able to independently estimate each virtual antenna transmission to receiver channel information transmitted data. 因此,每根虚拟天线都需要单独的导频来区分。 Thus, each virtual antenna requires a separate pilot distinguished. 其不同虚拟天线的导频可以采用TDM、 FDM或CDM方式来区分。 Their different virtual antennas can be distinguished using the pilot TDM, FDM or CDM system.

采用TDM方式插入导频符号时,同一小区的下行传输中,每4艮天线都有单独的导频符号,天线间的导频符号被插入不同的OFDM符号中,通过时间上的不重叠来保持正交性。 When the TDM pilot symbol is inserted, in downlink transmission in the same cell, each antenna has a separate Gen 4 pilot symbols, the pilot symbols are inserted between the antennas in different OFDM symbols, is held by non-overlapping time orthogonality.

采用FDM方式插入导频符号时,同一小区的下行传输中,每根天线都有单独的导频符号,天线间的导频符号被插入不同的子载波,通过频域上的不重叠来保持正交性。 When using FDM pilot symbols are inserted, in downlink transmission in the same cell, each antenna has a separate pilot symbols, the pilot symbols are inserted between the antennas different subcarriers to maintain positive by not overlapping the frequency domain pay property.

16采用CDM方式插入导频符号时,同一小区的下行传输中,所有天线的 16 inserted into the guide when using CDM pilot symbols, downlink transmission in the same cell, all the antenna

导频符号净皮插入相同的时频资源位置,^f旦各天线的导频符号与不同的正交序列相乘,可以得到相互正交的导频符号。 When the pilot symbols inserted into the same net Paper frequency resource, a pilot symbol ^ f denier multiplied by each antenna with a different orthogonal sequences, pilot symbols can be mutually orthogonal. 每4艮天线的导频可以选择其中的一个正交导频符号,通过码分的形式来保持多天线导频符号的正交,从而使得接收端能够根据正交的导频符号来估计信道信息。 Each antenna 4 Gen pilot can select one of the orthogonal pilot symbols, to maintain a multi-antenna orthogonal pilot symbols in the form of code division, so that the receiving end can estimate the channel information according to the orthogonal pilot symbols .

对于多天线的情况,专用导频插入单元S61应该采用TDM方式或FDM 方式插入专用导频符号,即将不同天线发送的专用导频符号插入基本单元块不重叠的时频资源位置。 For multi-antenna dedicated pilot insertion unit S61 FDM or TDM mode should be inserted into the dedicated pilot symbols, transmission antenna dedicated pilot is about different pilot symbols inserted into the basic block unit does not overlap the frequency resource.

可以看出,图6所示的设备既可以用于网络侧的发送设备,也可以用于用户侧的发送设备。 As can be seen, the device shown in FIG. 6 may be used to transmit network side device, the device may also be configured to send the user side.

在图6所示的导频插入装置中,在生成基本单元块时插入的是专用导频符号,然后对整个基本单元块进行加权。 Pilot frequency shown in FIG. 6 inserted into the device, is inserted in the basic block unit is generated dedicated pilot symbols, then the entire basic block unit is weighted. 在实际应用中,由于公共导频符号是全向发送的,不需^^故赋形,本小区的所有用户都可以利用公共导频符号进行信道估计。 In practice, since the common pilot symbol is transmitted to the whole, it need not shaping ^^, all users of the cell can use the common pilot symbols for channel estimation. 因此,对于公共导频符号不必采用RC序列进行加权重复。 Thus, to the common pilot symbol does not need an RC repeat weighting sequences. 图7是另一种正交频分复用系统的导频插入装置的示意图,采用该装置可以在基本单元块中插入公共导频符号。 FIG 7 is a schematic diagram of another orthogonal frequency multiplexing system pilot sub-insertion device, the device can be inserted using common pilot symbols in the basic block unit.

在图7所示的装置中,包括第二加权单元S71、重复单元S72和公共导频插入单元S73。 In the apparatus shown in FIG. 7, it comprises a second weighting unit S71, S72 and repeating units common pilot insertion unit S73.

第二加权单元S71用于对发送端设备生成的数据单元块加权、重复,获得多个重复数据单元块;重复单元S72用于对所述多个重复&据单元块调制、 映射生成多个重复单元块;公共导频插入单元S73用于在所述多个重复单元块中插入公共导频符号。 S71 The second weighting unit for weighting the data unit transmitting side apparatus to generate block is repeated to obtain a plurality of repeat data element block; S72 for repeating the repeating unit of the plurality of data units & block modulation, mapping to generate a plurality of repeated cell block; S73 common pilot insertion unit for inserting common pilot symbols in a plurality of repeating units of the blocks.

第二加权单元S71将RC序列中的各加权因子分别与数据单元块相乘并重复调制,以对数据单元块进行加权、重复。 The second weighting unit weighting factor S71 each RC sequences are multiplied with modulation and repeat data element block, to weight the blocks of data elements are repeated.

公共导频插入单元S73应该在所述多个重复单元块中的每个重复单元块插入至少一个公共导频符号。 S73 common pilot insertion unit to be inserted in each repeated block unit of the plurality of repeated block units at least one common pilot symbols. 公共导频插入单元S73既可以在各块重复单元中同一OFDM符号的至少一个子载波上插入公共导频符号,也可以在各块重复单元中至少一个OFMD符号的同一子载波上插入/>共导频符号,还可以在各块重复单元的多个OFDM符号的不同子载波上插入公共导频符号。 Common pilot insertion unit S73 may be at least one sub same OFDM symbol inserted into a common pilot symbol on a carrier in each block repeating units, may be inserted at least on the same subcarrier in one OFMD symbols in each block repeating units /> Total the pilot symbols may also be inserted into the common pilot symbols on different subcarriers of OFDM symbols of a plurality of repeating units of each block. 这里还需要说明的是,如果一个重复单元块所占用的时频资源小于现有 There is also to be noted that, if a cell block when the repetition frequency resources occupied by less than the prior

的OFDM调制方式下的一个PRB,则公共导频插入单元S73也可以PRB为单位,在每个PRB内插入至少一个公共导频符号即可,而无需在每个重复单元块中都插入公共导频符号。 A PRB in an OFDM modulation scheme, the common pilot insertion unit S73 may PRB as a unit, inserting at least one common pilot symbols within each PRB can, without having in each repeating unit is inserted in a common guide block pilot symbols.

对于多天线的情况,公共导频插入单元S73应该采用TDM方式或FDM 方式插入公共导频符号,即将不同天线发送的公共导频符号插入基本单元块不重叠的时频资源位置。 In the case of multiple antennas, the common pilot inserting unit S73 FDM or TDM mode should be inserted into the common pilot symbols, a common pilot transmitted from different antennas is about pilot symbols inserted into the basic block unit does not overlap the frequency resource.

基于上述导频插入方法,本发明还提出了实施该方法的基站和UE。 Based on the above pilot insertion method, the present invention also proposes a base station and a UE implementing the method.

图8是一种基站的示意图,该基站包括基站基本单元块单元S81、基站专用导频插入单元S82和基站第一加权单元S83。 FIG 8 is a schematic diagram of a base station, which base station comprises a base element block unit S81, a first base station dedicated pilot insertion unit S82 S83 weighting unit and the base station.

基站基本单元块单元S81用于生成基本单元块,基站专用导频插入单元S82用于在基本单元块插入至少一个专用导频符号,基站第一加权单元S83 用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块。 Element block unit S81 base station for generating a basic block unit, the base station S82 dedicated pilot insertion unit for inserting at least one dedicated pilot symbols in the basic block unit, a base station for a first weighting unit S83 the base unit block blocks of data elements and the weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.

基站专用导频插入单元S82可以在基本单元块中同一OFDM符号的至少一个子载波上插入专用导频符号,图3-la、 3-lb和3-lc分别是该方式的三个示意图; The base station dedicated pilot insertion unit S82 may be at least one sub same OFDM symbol of the dedicated pilot symbols inserted in the basic carrier unit block, FIGS. 3-la, 3-lb and 3-lc are three schematic of the embodiment;

基站专用导频插入单元S82也可以在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号,图3-2a、 3-2b、 3-2c和3-2d分别是该方式的四个示意图; The base station dedicated pilot insertion unit S82 may be inserted on the same dedicated pilot symbols of at least one subcarrier OFMD symbol in the basic block unit, FIG. 3-2a, 3-2b, 3-2c and 3-2d are in the way a schematic view of four;

或者,基站专用导频插入单元S82还可以在基本单元块的多个OFDM符号的不同子载波上插入专用导频符号,图3-3是该方式的一个示意图。 Alternatively, the base station dedicated pilot insertion unit S82 may also be inserted into the dedicated pilot symbols on different subcarriers of OFDM symbols of a plurality of basic cell block 3-3 is a schematic diagram of the embodiment.

基站第一加权单元S83将RC序列中的各加权因子与所述多个基本单元块中的数据单元块和专用导频符号相乘并重复调制,以对所述多个基本单元块中的数据单元块和专用导频符号加权、重复。 A first base station to each of the weighting unit weighting factor S83 of RC sequences in the plurality of blocks of data units in the basic block unit and dedicated pilot symbols are multiplied and repeat modulation, data of the plurality of basic cell blocks cell block and the weighted dedicated pilot symbol is repeated.

在BR-OFDM系统中使用导频符号,还需要考虑多天线的情况。 Using pilot symbols BR-OFDM systems, also we need to consider the case of multiple antennas. 在目前的宽带通信系统中,为了增加系统容量,通常采用多根天线发送数据,从而提高系统传输能力,典型的应用是多输入多输出(MIMO)技术。 In current broadband communication systems, in order to increase system capacity, usually a plurality of antennas transmits data to improve system transmission capability, typical application is Multiple Input Multiple Output (MIMO) technology.

在MIMO技术中,天线可以分为虚拟天线和物理天线,所谓的虚拟天线是指接收端需要区分发送端的天线数目,而物理天线指发送端在发送数据时候实际使用的实物天线的数目。 In the MIMO technology, the antenna may be divided into virtual and physical antennas an antenna, a so-called virtual antennas refer to the number of antennas necessary to distinguish between the receiving end of the transmission side, and the physical antennas refer to the number of physical antennas in the transmitting side transmits data when in actual use. 为了能够准确地对不同天线发送的数据进行检测和解调,接收端需要能够单独地估算出发送端到接收端的每根虚拟天线发送数据的信道信息。 In order to accurately detect and demodulate the data sent by different antennas, the receiving side needs to be able to independently estimate each virtual antenna transmission to receiver channel information transmitted data. 因此,每根虚拟天线都需要单独的导频来区分。 Thus, each virtual antenna requires a separate pilot distinguished. 其不 It does not

同虚拟天线的导频可以采用TDM、 FDM或CDM方式来区分。 Pilots with virtual antennas can be distinguished using TDM, FDM or CDM system.

采用TDM方式插入导频符号时,同一小区的下行传输中,每根天线都有单独的导频符号,天线间的导频符号被插入不同的OFDM符号中,通过时间上的不重叠来保持正交性。 When the TDM pilot symbol is inserted, in downlink transmission in the same cell, each antenna has a separate pilot symbols, the pilot symbols are inserted between the antennas in different OFDM symbols, is held by positive do not overlap in time pay property.

采用FDM方式插入导频符号时,同一小区的下行传输中,每根天线都有单独的导频符号,天线间的导频符号被插入不同的子载波,通过频域上的不重叠来保持正交性。 When using FDM pilot symbols are inserted, in downlink transmission in the same cell, each antenna has a separate pilot symbols, the pilot symbols are inserted between the antennas different subcarriers to maintain positive by not overlapping the frequency domain pay property.

采用CDM方式插入导频符号时,同一小区的下4亍传输中,所有天线的导频符号被插入相同的时频资源位置,但各天线的导频符号与不同的正交序列相乘,可以得到相互正交的导频符号。 When using CDM pilot symbol is inserted, the right foot transmission of the same cell 4, the pilot symbols of all antennas are inserted into the same frequency resource time, but the pilot symbols for each antenna with a different orthogonal sequences can be multiplied obtained mutually orthogonal pilot symbols. 每根天线的导频可以选择其中的一个正交导频符号,通过码分的形式来保持多天线导频符号的正交,从而4吏得接收端能够根据正交的导频符号来估计信道信息。 Each antenna pilot may select one of the orthogonal pilot symbols, to maintain a multi-antenna orthogonal pilot symbols in the form of code division, so that the receiving end can obtain 4 officials estimate the channel according to the orthogonal pilot symbols information.

对于多天线的情况,基站专用导频插入单元S82应该采用TDM方式或FDM方式插入专用导频符号,即将不同天线发送的专用导频符号插入基本单元块不重叠的时频资源位置。 In the case of multiple antennas, the base station dedicated pilot insertion unit S82 FDM or TDM mode should be inserted into the dedicated pilot symbols, transmission antenna dedicated pilot is about different pilot symbols inserted into the basic block unit does not overlap the frequency resource.

图9是另一种基站的示意图,该基站包括数据单元块单元S91、基站第二加权单元S92、基站重复单元S93和基站公共导频插入单元S94。 FIG 9 is a schematic diagram of another base station, the base station includes a data element block unit S91,, the second weighting unit base S92, S93 and the base station repeating units common pilot insertion unit S94.

数据单元块单元S91用于生成数据单元块,基站第二加权单元S92用于对数据单元块加权、重复,获得多个重复数据单元块, Data element block unit S91 means for generating a data block, the base station for a second cell block S92 weighting unit weighting the data is repeated to obtain a plurality of repeat data element block,

基站重复单元S93用于对所述多个重复数据单元块调制、映射生成多个重复单元块,基站公共导频插入单元S94用于在所述多个重复单元块中插入公共导频符号。 S93 base repeating unit for repeating data of the plurality of block unit modulation, mapping to generate a plurality of repeated block units, the base station S94 common pilot insertion unit for inserting common pilot symbols in a plurality of repeating units of the blocks.

基站第二加权单元S92将RC序列中的各加权因子分别与数据单元块相乘并重复调制,以对数据单元块进行加权、重复。 The second base station each weighting unit weighting factor S92 RC sequences are multiplied with modulation and repeat data element block, to weight the blocks of data elements are repeated.

基站公共导频插入单元S94应该在所述多个重复单元块中的每个重复单元块插入至少一个公共导频符号。 The base station common pilot inserting unit should each repeated block unit S94 of the plurality of repeating units in blocks of inserting at least one common pilot symbols. 基站公共导频插入单元S94既可以在各块重复单元中同一OFDM符号的至少一个子载波上插入7>共导频符号,也可以在各块重复单元中至少一个OFMD符号的同一子载波上插入公共导频符号, 还可以在各块重复单元的多个OFDM符号的不同子载波上插入公共导频符号。 The base station common pilot insertion unit S94 may be at least one sub same OFDM symbol is inserted in each block repeating unit on the carrier 7> co-pilot symbols may be inserted on the same sub-carrier of at least one OFMD symbols in each block repeating unit common pilot symbols may be inserted into the common pilot symbols on different subcarriers of OFDM symbols of a plurality of repeating units of each block.

这里还需要说明的是,如果一个重复单元块所占用的时频资源小于现有的OFDM调制方式下的一个PRB,则基站公共导频插入单元S94也可以PRB 为单位,在每个PRB内插入至少一个公共导频符号即可,而无需在每个重复单元块中都插入公共导频符号。 There is also to be noted that, when a repeated block units if the frequency resources occupied by less than one PRB under conventional OFDM modulation scheme, the base station common pilot insertion unit S94 may PRB as a unit, inserted into each PRB at least one common pilot symbols can be, without common pilot symbols are inserted in each repeating unit block.

对于多天线的情况,基站7>共导频插入单元S94应该采用TDM方式或FDM方式插入公共导频符号,即将不同天线发送的公共导频符号插入基本单元块不重叠的时频资源位置。 In the case of multiple antennas, the base station 7> co-pilot inserting unit S94 FDM or TDM mode should be inserted into the common pilot symbols, the base unit when non-overlapping blocks of common pilot symbols transmitted from different antennas upcoming insertion-frequency resource.

图IO是一种UE的示意图,该UE包括终端基本单元块单元S101、终端专用导频插入单元S102和终端加权单元S103。 FIG IO is a schematic diagram of a UE, the UE includes a terminal block unit S101 the base unit, a terminal dedicated pilot insertion unit and the terminal weighting unit S102 S103.

终端基本单元块单元S101用于生成基本单元块,终端专用导频插入单元S102用于在基本单元块插入至少一个专用导频符号,终端加权单元S103 用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块。 A terminal block unit S101 the base unit for generating a basic block unit, a terminal dedicated pilot insertion unit for inserting at least one S102 dedicated pilot symbols in the basic block unit, the terminal unit S103 for weighting data of the basic cell block unit blocks and weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.

终端专用导频插入单元S102可以在基本单元块中同一OFDM符号的至少一个子载波上插入专用导频符号,图3-la、 3-lb和3-lc分别是该方式的三个示意图; Terminal dedicated pilot insertion unit may be at least one sub-S102 the same OFDM symbols dedicated pilot symbols inserted into the base unit on a carrier block, FIGS. 3-la, 3-lb and 3-lc are three schematic of the embodiment;

终端专用导频插入单元S102也可以在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号,图3-2a、 3-2b、 3-2c和3-2d分别是该方式的四个示意图; Terminal dedicated pilot insertion unit S102 may be inserted on the same dedicated pilot symbols of at least one subcarrier OFMD symbol in the basic block unit, FIG. 3-2a, 3-2b, 3-2c and 3-2d are in the way a schematic view of four;

或者,终端专用导频插入单元S102还可以在基本单元块的多个OFDM 符号的不同子载波上插入专用导频符号,图3-3是该方式的一个示意图。 Alternatively, a terminal dedicated pilot insertion unit may insert S102 dedicated pilot symbols on different subcarriers of OFDM symbols of a plurality of basic cell block 3-3 is a schematic diagram of the embodiment.

终端加权单元S103将RC序列中的各加权因子与所述多个基本单元块中的数据单元块和专用导频符号相乘并重复调制,以对所述多个基本单元块中的数据单元块和专用导频符号加权、重复。 Weighting each terminal unit weighting factor S103 RC sequences of the plurality of base data element block unit block and dedicated pilot symbols are multiplied and repeat modulation, the data unit block of the plurality of basic units of blocks and the weighted dedicated pilot symbol is repeated. 当UE具有多4艮天线时终端专用导频插入单元S102应该采用TDM方式或FDM方式插入专用导频符号,即将不同天线发送的专用导频符号插入基本单元块不重叠的时频资源位置。 Terminal 4 when the UE has multiple antennas Gen S102 dedicated pilot insertion unit FDM or TDM mode should be inserted into the dedicated pilot symbols, transmission antenna dedicated pilot is about different pilot symbols inserted into the basic block unit does not overlap the frequency resource.

在发送下行信号时,发送端为网络侧,网络侧确定RC序列后可以通过广播或控制信道将RC序列的信息、发送重复单元块所在的时频资源位置、 块重复图样、专用导频配置信息以及其它相关控制信息预先通知相关UE, 从而使所述UE可以接收重复单元块,并利用的所述RC序列对各重复单元块中的数据单元块进行加权、合并。 After sending the downlink signal, the transmitting end is the network side, the network side is determined by the RC sequences may be broadcast or control channel information RC sequences, when the cell block where repeating transmission frequency resource position, block repeat pattern, special pilot arrangement information and other related control information in advance notify UE, so that the UE may receive repeated block units, and each repeating cell block to data block units is weighted using the combined RC sequence. 所述UE也可以对接收到的多个块重复单元中的专用导频符号进行逆运算,获得用于加权专用导频符号的RC序列, 也就是用于加权数据单元块的RC序列,在这种情况下,网络侧可以不将所述RC预先通知UE。 The UE may also be a plurality of abutting blocks of dedicated pilot symbols received repeat unit performs an inverse operation to obtain a RC sequence for weighted dedicated pilot symbol, i.e. a RC sequence for weighted data unit block, in which the case, the network side may not notify in advance the RC UE.

为使UE能够逆运算获得用于加权专用导频符号的RC序列,UE还应该包括比照单元和解析单元。 An inverse operation to enable the UE to obtain a RC sequence for weighted dedicated pilot symbol, further comprising a UE should cf. unit and a parsing unit.

比照单元用于在收到插入专用导频符号的重复单元块后,将接收到的专用导频符号和未加权情况下的专用导频符号进行比照;解析单元用于根据比照单元的比照结果逆运算获得对专用导频符号加权的RC序列。 Cf. unit after receiving the repeated block units dedicated pilot symbols inserted into the dedicated pilot in the received dedicated pilot symbols and pilot symbols unweighted case cf; cf. parsing unit according to the results of inverse unit cf. calculation obtained RC sequence weighted dedicated pilot symbols.

例如,1疋接收到的专用导频符号为{1, -1, -1, 1},而其通过专用导频配置信息获得的未加权情况下的专用导频符号为{1, 1, 1, 1},则通过比照、 逆运算可以获得对专用导频符号{1, 1, 1, 1}进行加权的RC序列为(1, -1, -1, 1)。 For example, a piece goods received dedicated pilot symbols {1, -1, -1, 1}, and its configuration dedicated pilot frequency in the case of non-weighted information obtained by the dedicated pilot is a pilot symbol {1, 1, 1 , 1}, is by contrast, reverse operation may be obtained dedicated pilot symbols {1, 1, 1, 1} RC sequence is weighted (1, -1, -1, 1).

本领域技术人员可以明白,这里结合所公开的实施例描述的各种示例性 Those skilled in the art will appreciate that, as described in connection with the embodiments herein disclosed various exemplary

的方法步骤和装置单元均可以电子硬件、软件或二者的结合来实现。 The method steps and device units can be electronic hardware, software, or both to achieve. 为了清 To clear

楚地示出硬件和软件之间的可交换性,以上对各种示例性的步骤和单元均以 Chu illustrate this interchangeability of hardware and software, various illustrative are the above steps and units

其功能性的形式进行总体上的描述。 In the form of a functional description is general. 这种功能性是以硬件实现还是以软件实 This functionality is implemented as hardware or software real

现依赖于特定的应用和整个系统所实现的设计约束。 It is now dependent on the particular application and design constraints imposed on the overall system implementation. 本领域技术人员能够针 Those skilled in the art to pin

对每个特定的应用,以多种方式来实现所描述的功能性,但是这种实现的结果不应解释为倒是背离本发明的范围。 For each particular application, a variety of ways to implement the described functionality, but such implementation decisions should not be interpreted as departing from the scope of the invention actually.

利用通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程的逻辑器件、分立门或者晶体管逻辑、分立硬件组件或者他们之中的任意组合,可以实现或执行结合这里/> 开的实施例描述的各种示例性的单元。 With a general purpose processor, a digital signal processor (DSP), application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or among them various exemplary embodiments described elements in any combination, herein may be implemented or performed with /> apart. 通用处理器可能是微处理器,但是在另一种情况中,该处理器可能是任何常规的处理器、控制器、《鼓控制器或者 A general purpose processor may be a microprocessor, but in another case, the processor may be any conventional processor, controller, "or a drum controller

状态机。 state machine. 处理器也可能被实现为计算设备的组合,例如,DSP和微处理器的组合、多个微处理器、 一个或者更多结合DSP核心的微处理器或者任何其他此种结构。 A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core or any other such configuration.

结合上述公开的实施例所描述的方法的步骤可直接体现为硬件、由处理器执行的软件模块或者这二者的组合。 The steps of the method disclosed in the above described embodiments may be embodied directly in hardware, in a software module executed by a processor, or a combination of both. 软件模块可能存在于RAM存储器、 闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、 移动磁盘、CD-ROM或者本领域熟知的任何其他形式的存储i某质中。 Any other form of storage software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, CD-ROM, or known in the art for a mass of i. 一种典型存储媒质与处理器耦合,从而使得处理器能够从该存储媒质中读信息,且可向该存储媒质写信息。 An exemplary storage medium is coupled to the processor such that the processor can read information from the storage medium, and write information to, the storage medium. 在替换实例中,存储媒质是处理器的组成部分。 In the alternative, the storage medium may be integral to the processor. 处理器和存储i某质可能存在于一个ASIC中。 I a processor and the storage substance may be present in an ASIC. 该ASIC可能存在于一个用户站中。 The ASIC may reside in a user station. 在一个替换实例中,处理器和存储媒质可以作为用户站中的分立组件存在。 In the alternative, the processor and the storage medium may reside as discrete components in a subscriber station is present.

根据所述公开的实施例,可以使得本领域技术人员能够实现或者使用本发明。 According to the embodiment disclosed, it may enable those skilled in the art to make or use the present invention. 对于本领域技术人员来说,这些实施例的各种修改是显而易见的,并且这里定义的总体原理也可以在不脱离本发明的范围和主旨的基础上应用于其他实施例。 Of ordinary skill in the art, various modifications to these embodiments will be apparent, and the generic principles defined herein may be applied to other embodiments without departing from the scope and spirit of the present invention. 以上所述的实施例仅为本发明的较佳实施例而已,并不用以限制本发明,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。 Merely the preferred embodiment of the present invention, the above-described embodiment embodiments only, not intended to limit the present invention, any modifications within the spirit and principle of the present invention, the, equivalent substitutions, improvements should be included in the within the scope of the present invention.

Claims (38)

1、一种正交频分复用传输信号的导频插入方法,其特征在于,包括:生成基本单元块;在所述基本单元块插入至少一个专用导频符号;对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块。 1, an orthogonal frequency division multiplexing transmission method of the pilot signal is inserted, characterized by comprising: generating a basic block unit; inserting at least one dedicated pilot symbols in the basic block unit; block of the base unit data unit block and the weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units.
2、 如权利要求1所述的方法,其特征在于,在基本单元块中同一正交频分复用OFDM符号的至少一个子载波上插入专用导频符号。 2. The method as claimed in claim 1, characterized in that, in the basic block unit is inserted in the same orthogonal frequency division dedicated pilot symbols on the at least one subcarrier multiplexed OFDM symbol.
3、 如权利要求1所述的方法,其特征在于,在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号。 3. The method of claim 1, wherein the dedicated pilot symbols inserted into the same sub-carriers in at least one of the base unit OFMD symbol block.
4、 如权利要求1所述的方法,其特征在于,在基本单元块的多个OFDM 符号的不同子载波上插入专用导频符号。 4. The method of claim 1, wherein the dedicated pilot symbols inserted into different sub-carriers in the OFDM symbols of a plurality of basic cell blocks.
5、 如权利要求1所述的方法,其特征在于,相邻小区的专用导频符号被插入基本单元块内不重叠的时频资源位置。 5. The method of claim 1, wherein adjacent cells of dedicated pilot symbols are inserted without overlapping in the basic unit of frequency resource blocks.
6、 如权利要求1所述的方法,其特征在于,相邻小区的专用导频符号所采用的序列彼此正交。 6. The method as claimed in claim 1, wherein the sequence of the neighboring cell-specific pilot symbols used orthogonal to each other.
7、 如权利要求1所述的方法,其特征在于,将不同天线发送的专用导频符号插入基本单元块内不重叠的时频资源位置。 7. The method as claimed in claim 1, wherein, when the base unit does not overlap the block dedicated pilot symbols inserted into different antenna transmission frequency resource.
8、 如权利要求1所述的方法,其特征在于,被不同天线发送的专用导频符号所采用的序列彼此正交。 8. A method as claimed in claim 1, wherein the sequence of dedicated pilot symbols are transmitted using different antennas are orthogonal to each other.
9、 如权利要求1所述的方法,其特征在于,将不同用户的专用导频符号插入所述基本单元块内不重叠的时频资源位置。 9. A method as claimed in claim 1, wherein the dedicated pilot pilot symbols of different users do not overlap when inserted in the basic block unit frequency resource.
10、 如权利要求l所述的方法,其特征在于,将不同用户的专用导频符号插入所述基本单元块,所述不同用户的专用导频符号所采用的序列4皮此正交。 10. The method according to claim l, characterized in that the different user dedicated pilot symbols inserted into the pilot basic block unit, the dedicated pilot sequences for different users 4 pilot symbols used transdermal orthogonal thereto.
11、 如权利要求1至IO任意一项所述的方法,其特征在于,将重复码RC序列中的各加权因子分别与所述基本单元块中的数据单元块和专用导频符号相乘,以对所述基本单元块中的数据单元块和专用导频符号加权、重复。 11. A method as claimed in any one of claims 1 to claim IO wherein the repeat code RC sequence symbols are multiplied by the respective weighting factor to the basic block unit of the block of data and dedicated pilot unit, the basic block unit to the data unit block and the weighted dedicated pilot symbol is repeated.
12、 如权利要求11所述的方法,其特征在于,进一步包括: 接收端设备收到所述多个重复单元块后,将其中的专用导频符号和未加权情况下的专用导频符号进行比照;逆运算获得对专用导频符号加权的RC序列。 12. The method as claimed in claim 11, characterized in that, further comprising: after the receiving side apparatus receives the plurality of repeated block units, wherein the dedicated pilot at the dedicated pilot symbols and pilot symbols unweighted case cf; an inverse operation to obtain a RC sequence for weighted dedicated pilot symbols.
13、 一种正交频分复用系统的导频插入方法,其特征在于,包括: 对生成的数据单元块加权、重复,获得多个重复数据单元块; 对所述多个重复数据单元块调制、映射生成多个重复单元块; 在所述多个重复单元块中插入/〉共导频符号。 13, in an orthogonal frequency division multiplexing method of pilot inserting system, characterized by comprising: a weight generation unit block data is repeated to obtain a plurality of repeat data element block; duplicate data of the plurality of cell blocks modulation, mapping to generate a plurality of repeated block units; inserting the plurality of repeating units in the block /> co-pilot symbols.
14、 如权利要求13所述的方法,其特征在于,在所述多个重复单元块中的每个重复单元块插入至少一个/>共导频符号。 14. The method as claimed in claim 13, characterized in that each of the repeated block units at a plurality of repeating units of inserting at least one block /> co-pilot symbols.
15 、如权利要求14所述的方法,其特征在于,在重复单元块中同一OFDM 符号的至少一个子载波上插/^>共导频符号。 15. The method as claimed in claim 14, characterized in that at least one of the same sub-carriers on OFDM symbols inserted in the repeated Block Units / ^> co-pilot symbols.
16、 如权利要求14所述的方法,其特征在于,在重复单元块中至少一个OFMD符号的同一子载波上插入公共导频符号。 16. The method as claimed in claim 14, characterized in that, on the common pilot symbols inserted into the same sub-carrier in at least one repeating unit OFMD symbol block.
17、 如权利要求14所述的方法,其特征在于,在重复单元块的多个OFDM 符号的不同子载波上插入公共导频符号。 17. The method as claimed in claim 14, wherein inserting the common pilot symbols on different subcarriers of OFDM symbols of a plurality of repeated block units.
18、 如权利要求14所述的方法,其特征在于,相邻小区的公共导频符号被插入重复单元块内不重叠的时频资源位置。 18. The method as claimed in claim 14, wherein the neighboring cell common pilot symbols are inserted without overlapping of the frequency resource block repeating unit.
19、 如权利要求14所述的方法,其特征在于,将不同天线发送的公共导频符号插入重复单元块内不重叠的时频资源位置。 19. The method according to claim 14, wherein the common pilot transmitted by the different antennas do not overlap pilot symbols inserted in the repeated block units frequency resource.
20、 如权利要求13所述的方法,其特征在于,相邻小区的公共导频符号所采用的序列彼此正交。 20. The method as claimed in claim 13, characterized in that the sequence of the neighboring cell using common pilot symbols are orthogonal to each other.
21、 如权利要求13所述的方法,其特征在于,被不同天线发送的公共导频符号所采用的序列〗皮此正交。 21. The method according to claim 13, wherein the common pilot is transmitted pilot sequence different antennas〗 transdermal orthogonal symbols used for this.
22、 一种正交频分复用系统的导频插入装置,其特征在于,包括: 用于在发送端设备生成的基本单元块插入至少一个专用导频符号的专用导频插入单元;和用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的第一加权单元。 22, an orthogonal frequency division multiplexing system pilot insertion device comprising: a pilot insertion unit in the basic block unit generated by the transmission side apparatus dedicated pilot inserting at least one of the dedicated pilot symbols; and with the basic block unit to the data unit block, and the weighted dedicated pilot symbol is repeated to obtain a plurality of repeating units of the first weighting unit blocks.
23、 如权利要求22所述的装置,其特征在于,专用导频插入单元在基本单元块中同一OFDM符号的至少一个子载波上插入专用导频符号。 23. The apparatus as claimed in claim 22, wherein the dedicated pilot insertion unit at least a subset of the same OFDM symbol of the dedicated pilot symbols inserted in the basic carrier unit block.
24、 如权利要求22所述的装置,其特征在于,专用导频插入单元在基本单元块中至少一个OFMD符号的同一子载波上插入专用导频符号。 24. The apparatus as claimed in claim 22, wherein the dedicated pilot insertion unit inserting dedicated pilot symbols on the same sub-carrier of at least one base unit OFMD symbols block.
25、 如权利要求22所述的装置,其特征在于,专用导频插入单元在基本单元块的多个OFDM符号的不同子载波上插入专用导频符号。 25. The apparatus as claimed in claim 22, wherein the dedicated pilot insertion unit inserting dedicated pilot symbols on different subcarriers of OFDM symbols of a plurality of basic cell blocks.
26、 如权利要求22所述的装置,其特征在于,专用导频插入单元将不同天线发送的专用导频符号插入基本单元块不重叠的时频资源位置。 26. The apparatus as claimed in claim 22, wherein the dedicated pilot insertion unit dedicated pilot symbols transmitted from different antennas when the base unit is inserted into non-overlapping blocks of frequency resource.
27、 如权利要求22至26任意一项所述的装置,其特征在于,第一加权单元将重复码RC序列中的各加权因子与所述多个基本单元块中的数据单元块和专用导频符号相乘并重复调制,以对所述多个基本单元块中的数据单元块和专用导频符号加^5L、重复。 27. The apparatus as claimed in any one of claims 22 to 26, characterized in that the first weighting unit will repeat code RC sequence weighting factor for each of the plurality of basic units of data blocks in the unit block and dedicated pilot repeat modulation and pilot symbols are multiplied, pilot symbols plus ^ 5L to the plurality of basic cell blocks and data element block dedicated pilot repeated.
28、 一种正交频分复用系统的导频插入装置,其特征在于,包括:用于对发送端设备生成的数据单元块加权、重复,获得多个重复数据单元块的第二加权单元;用于对所述多个重复数据单元块调制、映射生成多个重复单元块的重复单元;和用于在所述多个重复单元块中插入公共导频符号的公共导频插入单元。 28, an orthogonal frequency division multiplexing system pilot insertion device comprising: a data transmitting terminal device generates weighting unit block, is repeated to obtain a plurality of repeat data element block of the second weighting unit ; repeating for the plurality of data block unit modulation, map generation repeating unit of the plurality of repeated block units; and means for inserting a common pilot common pilot symbols in the repeated block units plurality of pilot inserting unit.
29、 如权利要求28所述的装置,其特征在于,公共导频插入单元在所述多个重复单元块中的每个重复单元块插入至少一个公共导频符号。 29. The apparatus as claimed in claim 28, wherein each common pilot insertion unit of the repeated block units at a plurality of repeating units in the block is inserted at least one common pilot symbol.
30、 如权利要求29所述的装置,其特征在于,公共导频插入单元在各块重复单元中同一OFDM符号的至少一个子载波上插入公共导频符号。 30. The apparatus as claimed in claim 29, wherein the common pilot is inserted at least one sub-unit of the same OFDM symbols inserted into a common pilot symbol on a carrier in each block repeating unit.
31、 如权利要求29所述的装置,其特征在于,公共导频插入单元在各块重复单元中至少一个OFMD符号的同一子载波上插入^^共导频符号。 31. The apparatus as claimed in claim 29, wherein the common pilot insertion unit inserted at least on the same subcarrier ^^ OFMD symbol in a block of repeating units each of the CPC pilot symbols.
32、 如权利要求29所述的装置,其特征在于,公共导频插入单元在各块重复单元的多个OFDM符号的不同子载波上插入^^共导频符号。 32. The apparatus according to claim 29, wherein the common pilot insertion unit is inserted ^^ on different subcarriers of OFDM symbols of a plurality of repeating units of each block co-pilot symbols.
33、 如权利要求29所述的装置,其特征在于,公共导频插入单元将不同天线发送的公共导频符号插入块重复单元内不重叠的时频资源位置。 33. The apparatus as claimed in claim 29, wherein, when the common pilot inserting unit block does not overlap the repeating unit common pilot symbols inserted into different antenna transmission frequency resource.
34、 如权利要求28至33任意一项所述的装置,其特征在于,第二加权单元将重复码RC序列中的各加权因子分别与数据单元块相乘并重复调制, 以对lt据单元块进行加权、重复。 34. The apparatus as claimed in any one of claims 28 to 33 claims, characterized in that the second weighting unit will repeat code RC sequences are multiplied with respective weighting factors and repeat modulation unit block data to data unit for lt weighting block repeat.
35、 一种基站,其特征在于,包括:用于生成基本单元块的基站基本单元块单元;用于在基本单元块插入至少一个专用导频符号的基站专用导频插入单元5和用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的基站第一加权单元。 35. A base station, comprising: a base station for generating a basic block unit of the base unit block units; means for inserting at least one basic block unit dedicated pilot symbols of base stations dedicated pilot insertion unit 5, and for the basic unit of block data and block units weighted dedicated pilot symbol is repeated to obtain a plurality of repeated block units to a base station a first weighting unit.
36、 一种基站,其特征在于,包括:用于生成数据单元块的数据单元块单元;用于对数据单元块加权、重复,获得多个重复数据单元块的基站第二加权单元;用于对所述多个重复数据单元块调制、映射生成多个重复单元块的基站重复单元;和用于在所述多个重复单元块中插入公共导频符号的基站公共导频插入单元。 36. A base station, comprising: means for generating a data unit block data unit block; means for weighting data block is repeated, a plurality of base stations to obtain a second repeat data element block unit is weighted; for the plurality of repeat data element block modulation, mapping repeating base unit generates a plurality of repeated block units; and a base station common pilot for inserting the common pilot symbols in the repeated block units plurality of pilot insertion unit.
37、 一种用户i殳备,其特征在于,包括:用于生成基本单元块的终端基本单元块单元;用于在基本单元块插入至少一个专用导频符号的终端专用导频插入单元5 和用于对所述基本单元块中的数据单元块和专用导频符号加权、重复,获得多个重复单元块的终端加权单元。 37, i Shu A user equipment, characterized by comprising: means for generating a terminal block base basic block unit; means for inserting at least one dedicated pilot symbols in the basic block unit terminal dedicated pilot insertion unit 5, and the base unit for the frequency block and the unit block data weighted dedicated pilot symbol is repeated to obtain a plurality of terminal units weighting the repeated block units.
38、 如权利要求37所述的用户设备,其特征在于,还包括: 比照单元,用于在收到插入专用导频符号的重复单元块后,将4妄收到的解析单元,用于根据比照单元的比照结果逆运算获得对专用导频符号加权的RC序列。 38, user apparatus as claimed in claim 37, characterized in that, further comprising: means cf, after receiving the repeated block units dedicated pilot symbols inserted in the analyzing unit 4 receives the jump, according to cf. cf. calculation result of the inverse sequence unit obtained RC-weighted dedicated pilot symbols.
CN 200710164389 2007-10-30 2007-10-30 Pilot frequency insertion method, apparatus, base station and customer equipment of orthogonal frequency division multiplexing system CN101431490A (en)

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WO2010145254A1 (en) * 2009-09-24 2010-12-23 中兴通讯股份有限公司 Method and system for processing pilot demodulation, base station, user equipment thereof
WO2011082697A1 (en) * 2010-01-11 2011-07-14 电信科学技术研究院 Method and apparatus for transmitting downlink pilot
WO2013120433A1 (en) * 2012-02-15 2013-08-22 华为技术有限公司 Data transmission method, device and system on the basis of repeated encoding
WO2016045474A1 (en) * 2014-09-24 2016-03-31 Mediatek Inc. Synchronization in a beamforming system
US9698884B2 (en) 2014-09-24 2017-07-04 Mediatek Inc. Control signaling in a beamforming system
WO2017206963A1 (en) * 2016-06-03 2017-12-07 中兴通讯股份有限公司 Method and apparatus for sending and processing data unit, and station
CN107483162A (en) * 2016-06-08 2017-12-15 工业和信息化部电信研究院 A kind of terminal-specific pilot tone dispatching method and device
WO2018082414A1 (en) * 2016-11-04 2018-05-11 华为技术有限公司 Unlicensed transmission method, terminal and network equipment

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US20070071125A1 (en) * 2005-09-29 2007-03-29 Motorola, Inc. Method and apparatus for ifdma transmission
CN100481826C (en) * 2005-10-20 2009-04-22 清华大学 Transmitting and receiving method for signal of orthogonal frequency division multiplexing system
BRPI0617861A2 (en) * 2005-10-28 2012-04-17 Matsushita Electric Ind Co Ltd transmitting device, receiving device, transmission method, receiving method and wireless communication system
CN101232484B (en) * 2007-01-26 2011-08-17 电信科学技术研究院 Signal transmission method, apparatus and communication system

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WO2010145254A1 (en) * 2009-09-24 2010-12-23 中兴通讯股份有限公司 Method and system for processing pilot demodulation, base station, user equipment thereof
WO2011082697A1 (en) * 2010-01-11 2011-07-14 电信科学技术研究院 Method and apparatus for transmitting downlink pilot
US9780935B2 (en) 2010-01-11 2017-10-03 China Academy Of Telecommunications Technology Method and device for transmitting downlink pilot
WO2013120433A1 (en) * 2012-02-15 2013-08-22 华为技术有限公司 Data transmission method, device and system on the basis of repeated encoding
WO2016045474A1 (en) * 2014-09-24 2016-03-31 Mediatek Inc. Synchronization in a beamforming system
US9698884B2 (en) 2014-09-24 2017-07-04 Mediatek Inc. Control signaling in a beamforming system
US9705581B2 (en) 2014-09-24 2017-07-11 Mediatek Inc. Synchronization in a beamforming system
US9866299B2 (en) 2014-09-24 2018-01-09 Mediatek Inc. Synchronization in a beamforming system
US9882620B2 (en) 2014-09-24 2018-01-30 Mediatek Inc. Synchronization in a beamforming system
US10396873B2 (en) 2014-09-24 2019-08-27 Mediatek Inc. Control signaling in a beamforming system
WO2017206963A1 (en) * 2016-06-03 2017-12-07 中兴通讯股份有限公司 Method and apparatus for sending and processing data unit, and station
CN107483162A (en) * 2016-06-08 2017-12-15 工业和信息化部电信研究院 A kind of terminal-specific pilot tone dispatching method and device
WO2018082414A1 (en) * 2016-11-04 2018-05-11 华为技术有限公司 Unlicensed transmission method, terminal and network equipment

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