WO2018058448A1

WO2018058448A1 - Data transmission method and device

Info

Publication number: WO2018058448A1
Application number: PCT/CN2016/100858
Authority: WO
Inventors: 赵悦莹; 刘亚辉
Original assignee: 华为技术有限公司
Priority date: 2016-09-29
Filing date: 2016-09-29
Publication date: 2018-04-05
Also published as: CN108604951B; CN108604951A

Abstract

The invention relates to the technical field of data transmission, and more particularly, relates to a data transmission method and device. The method comprises: receiving a data retransmission instruction; adjusting, according to the data retransmission instruction, a position occupied by a modulation symbol in an original constellation diagram; and performing mapping and transmission on the modulation symbol according to the constellation diagram containing the adjusted position of the modulation symbol. The data transmission method and device provided in the embodiment of the invention do not require an extra transmission resource to transmit a data signal, and can reduce phase noise interference on the data signal.

Description

数据传输方法及设备Data transmission method and device

技术领域Technical field

本申请涉及数据传输技术领域，尤其涉及一种数据传输方法及设备。The present application relates to the field of data transmission technologies, and in particular, to a data transmission method and device.

背景技术Background technique

在移动通信***中，数据信号的传输过程包括对待传输的基带信号编码调制得到各调制符号、将各调制符号映射到星座图以及根据星座图将各调制符号映射到传输资源上传输等步骤。上述对数据信号处理的各个步骤中，不可避免的会引入各类噪声，如相位噪声。相位噪声是一种乘性噪声，在频域表现为频谱的扩展，经过对数据传输过程的定量研究发现，传输数据信号的频率越高相位噪声的影响越大，相比2.6GHz的载波频率，28GHz的载波频率的相噪指标恶化20dB左右，60GHz的载波频率的相噪指标恶化26dB左右。In a mobile communication system, a data signal transmission process includes a step of code-modulating a baseband signal to be transmitted to obtain each modulation symbol, mapping each modulation symbol to a constellation, and mapping each modulation symbol to a transmission resource according to a constellation. In the above various steps of processing the data signal, various types of noise, such as phase noise, are inevitably introduced. Phase noise is a kind of multiplicative noise. It appears as an extension of the spectrum in the frequency domain. After quantitative research on the data transmission process, the higher the frequency of the transmitted data signal, the greater the influence of phase noise, compared to the carrier frequency of 2.6 GHz. The phase noise index of the carrier frequency of 28 GHz deteriorates by about 20 dB, and the phase noise index of the carrier frequency of 60 GHz deteriorates by about 26 dB.

为了克服相位噪声对数据传输带来的传输性能下降的问题，现有技术中提出了多种具有相噪免疫性能的数据传输方案，比较典型的一种是在传输资源中***用于相位纠正的导频信号，其中，为了保证相位纠正精度，传输资源时域和频域中***的用于相位纠正的导频信号要满足一定的分布密度。In order to overcome the problem of phase transmission noise degradation caused by data transmission, various data transmission schemes with phase noise immunity performance are proposed in the prior art, and a typical one is to insert phase correction in transmission resources. The pilot signal, wherein the pilot signal for phase correction inserted in the time domain and the frequency domain of the transmission resource satisfies a certain distribution density in order to ensure phase correction accuracy.

上述数据传输方案中，用于相位纠正的导频信号要占用一部分数据传输资源，相应的传输数据信号可用的资源减少。In the above data transmission scheme, the pilot signal used for phase correction occupies a part of the data transmission resource, and the resources available for the corresponding transmission data signal are reduced.

发明内容Summary of the invention

本申请提供了一种对相位噪声进行免疫的数据传输方法及设备，所述数据传输方法及设备在传输数据信号时不额外占用传输资源，并且能够降低相位噪声对数据信号的干扰。The present application provides a data transmission method and device for immunizing phase noise. The data transmission method and device do not additionally occupy transmission resources when transmitting data signals, and can reduce interference of phase noise on data signals.

一方面，本发明实施例提供一种数据传输方法。所述方法包括：数据传输设备在接收到数据重传指令时，根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置，并且根据调制符号位置调整之后的星座图对调制符号映射传输。数据传输设备在重传数据信号时，对原始星座图上各调制符号的位置进行调整，从而可以将调制符号受到相位干扰的影响平均到每个调制符号上，接收设备根据上一次和本次重传接收到的信号来解调出正确的数据信号，从而克服相位噪声对数据信号的影响。In one aspect, an embodiment of the present invention provides a data transmission method. The method includes: when receiving the data retransmission instruction, the data transmission device adjusts a symbol position occupied by a modulation symbol in the original constellation according to the data retransmission instruction, and modulates the constellation according to the modulation symbol position adjustment Symbol map transfer. When the data transmission device retransmits the data signal, the position of each modulation symbol on the original constellation is adjusted, so that the modulation symbol can be averaged to each modulation symbol by the influence of phase interference, and the receiving device is heavy according to the previous time and the current time. Pass the received signal to demodulate the correct data signal to overcome the phase The effect of noise on the data signal.

在一个可能的设计中，数据传输设备调整原始星座图中调制符号所占据的符号位置包括：调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置；其中，所述第一类调制符号的噪声容忍度高于所述第二类调制符号的噪声容忍度。In a possible design, the data transmission device adjusts the symbol position occupied by the modulation symbol in the original constellation diagram by: adjusting a symbol position occupied by the first type of modulation symbol and the second type of modulation symbol in the original constellation; The noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.

在本实现方式中，数据传输设备根据原始星座图中各调制符号的噪声容忍度调整调整符号的符号位置，从而可以有效地将原始星座图中噪声容忍度低的调制符号调整为噪声容忍度高的调制符号，尽可能使上一次传输失败的调整符号在本次重传中传输成功。In this implementation manner, the data transmission device adjusts the symbol position of the adjustment symbol according to the noise tolerance of each modulation symbol in the original constellation, so that the modulation symbol with low noise tolerance in the original constellation can be effectively adjusted to have high noise tolerance. The modulation symbol, as far as possible, makes the adjustment symbol of the previous transmission failure successfully transmitted in this retransmission.

在一个可能的设计中，数据传输设备调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置，包括：确定原始星座图中各调制符号的噪声容忍度；根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。In one possible design, the data transmission device adjusts the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols in the original constellation, including: determining noise tolerance of each modulation symbol in the original constellation; The noise tolerance of the symbol, exchanging the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols.

在本实现方式中，数据传输设备在调整原始星座图中各调制符号的符号位置时，根据各调制符号的噪声容忍度去调整，并且在调整时将噪声容忍度高的调制符号(对应第一类调制符号)和噪声容忍度低的调制符号(对应第二类调制符号)交换所占据的符号位置。In this implementation manner, when adjusting the symbol position of each modulation symbol in the original constellation diagram, the data transmission device adjusts according to the noise tolerance of each modulation symbol, and adjusts the modulation symbol with high noise tolerance (corresponding to the first The modulation symbol (like the second type of modulation symbol) and the symbol position occupied by the modulation of the low noise tolerance (corresponding to the second type of modulation symbol).

在一个可能的设计中，数据传输设备确定原始星座图中各调制符号的噪声容忍度的方式包括：数据传输设备根据各调制符号在原始星座图中所占据的符号位置，确定各调制符号的噪声容忍度，其中，原始星座图的各符号位置分别对应有预设的噪声容忍度。In one possible design, the manner in which the data transmission device determines the noise tolerance of each modulation symbol in the original constellation includes: the data transmission device determines the noise of each modulation symbol according to the symbol position occupied by each modulation symbol in the original constellation. Tolerance, wherein each symbol position of the original constellation corresponds to a preset noise tolerance.

在一个可能的设计中，数据传输设备根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置，包括：数据传输设备在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置。In a possible design, the data transmission device exchanges the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols according to the noise tolerance of each modulation symbol, including: the data transmission device in each quadrant of the original constellation The symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged.

在一个可能的设计中，数据传输设备在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置，包括数据传输设备根据原始星座图每个象限中调制符号噪声容忍度的高低，对每个象限中的调制符号进行排序；数据传输设备按照排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度；数据传输设备将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。In one possible design, the data transmission device exchanges the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols in each quadrant of the original constellation, including the data transmission device in each quadrant according to the original constellation Modulating the noise tolerance of the symbol, sorting the modulation symbols in each quadrant; the data transmission device reassigns the noise tolerance of each modulation symbol according to the reverse order of the noise tolerance after sorting; the data transmission device adjusts each modulation symbol to Its new noise tolerance corresponds to the symbol position.

在一个可能的设计中，数据传输设备调整原始星座图中噪声调制符号所占据的符号位置，包括：数据传输设备将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In one possible design, the data transmission device adjusts the noise modulation symbols occupied by the original constellation The symbol position includes: a symbol position at which the data transmission device occupies a modulation symbol located outside the original constellation and a modulation symbol exchange within the outer periphery of the original constellation.

在一个可能的设计中，数据传输设备将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置，包括：数据传输设备在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In one possible design, the data transmission device positions the modulation symbols located outside the original constellation and the modulation symbols occupied by the modulation symbols within the outer periphery of the original constellation, including: each of the data transmission devices in the original constellation In the quadrant, the modulation symbols occupied by the outer periphery of the original constellation and the symbol positions occupied by the modulation symbols located within the outer periphery of the original constellation.

在一个可能的设计中，数据传输设备调整原始星座图中调制符号所占据的符号位置，包括：数据传输设备对原始星座图中的各调制符号进行预设规则的运算；数据传输设备将所述运算后得到的各调制符号调制到星座图上。In a possible design, the data transmission device adjusts the symbol position occupied by the modulation symbol in the original constellation, including: the data transmission device performs a preset rule operation on each modulation symbol in the original constellation; the data transmission device will Each modulation symbol obtained after the operation is modulated onto the constellation.

在一个可能的设计中，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。In one possible design, the operation of the preset rule includes: transposing the order of at least two bits included in the modulation symbol, and negating at least two bits included in the modulation symbol.

另一方面，为了实现上述数据传输方法，本发明实施例提供了一种数据传输设备，该数据传输设备具有实现上述数据传输方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。On the other hand, in order to implement the foregoing data transmission method, an embodiment of the present invention provides a data transmission device having a function of implementing the foregoing data transmission method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

在一个可能的设计中，数据传输设备包括：接收单元，用于接收数据重传指令；调整单元，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；发送单元，用于根据调制符号位置调整之后的星座图，传输所述各调制符号。In a possible design, the data transmission device includes: a receiving unit, configured to receive a data retransmission instruction; and an adjusting unit, configured to adjust, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in the original constellation; And a unit, configured to transmit the modulation symbols according to a constellation diagram after the modulation symbol position is adjusted.

再一方面，本发明实施例提供了一种传输设备，包括：接收器、处理器和发射器；其中，接收器，用于接收数据重传指令；处理器，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；发射器，用于根据调制符号位置调整之后的星座图对调制符号映射传输。In still another aspect, an embodiment of the present invention provides a transmission device, including: a receiver, a processor, and a transmitter; wherein, a receiver is configured to receive a data retransmission instruction; and a processor is configured to retransmit according to the data And an instruction to adjust a symbol position occupied by the modulation symbol in the original constellation; and a transmitter configured to transmit the modulation symbol map according to the constellation after the modulation symbol position adjustment.

再一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述数据传输设备所用的计算机软件指令，其包含用于执行上述方法所设计的程序。In still another aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the data transmission device, including a program designed to execute the above method.

相较于现有技术，本发明提供的数据传输方案在传输数据信号时不额外占用传输资源，并且能够降低相位噪声对数据信号的干扰。Compared with the prior art, the data transmission scheme provided by the present invention does not additionally occupy transmission resources when transmitting data signals, and can reduce interference of phase noise on data signals.

附图说明DRAWINGS

为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the technical solutions of the present application, the drawings used in the embodiments will be briefly described below. Obviously, for those skilled in the art, without any creative labor, Other drawings can also be obtained from these figures.

图1是本发明的一种可能的应用场景示意图；1 is a schematic diagram of a possible application scenario of the present invention;

图2是图1所示***架构的一种具体结构示意图；2 is a schematic diagram of a specific structure of the system architecture shown in FIG. 1;

图3是本发明的一种可能的数据传输***的示意图；Figure 3 is a schematic illustration of one possible data transmission system of the present invention;

图4是本发明实施例一数据传输方法的流程图；4 is a flowchart of a data transmission method according to an embodiment of the present invention;

图5是本发明实施例二数据传输方法的流程图；5 is a flowchart of a data transmission method according to Embodiment 2 of the present invention;

图6是一种星座图的示意图；Figure 6 is a schematic diagram of a constellation diagram;

图7是数据传输设备中生成的一种原始星座图的示意图；7 is a schematic diagram of an original constellation diagram generated in a data transmission device;

图8是数据传输设备交换图7星座图中的调制符号的位置之后的星座图。Figure 8 is a constellation diagram after the data transmission device exchanges the position of the modulation symbol in the constellation diagram of Figure 7.

图9是一种相位噪声影响示意图；Figure 9 is a schematic diagram of phase noise effects;

图10是本发明实施例数据传输设备的一种可能的设计结构的简化示意图；10 is a simplified schematic diagram of a possible design structure of a data transmission device according to an embodiment of the present invention;

图11是本发明实施例UE的一种可能的设计结构的简化示意图；11 is a simplified schematic diagram of a possible design structure of a UE according to an embodiment of the present invention;

图12是本发明实施例基站的一种可能的设计结构的简化示意图；12 is a simplified schematic diagram of a possible design structure of a base station according to an embodiment of the present invention;

图13是图7所示星座图的表格格式；Figure 13 is a table format of the constellation diagram of Figure 7;

图14是图8所示星座图的表格格式。Figure 14 is a table format of the constellation diagram of Figure 8.

具体实施方式detailed description

图1是本发明的一种可能的应用场景示意图。如图1所示，用户设备UE通过无线接入网(Radio Access Network,简称)及核心网(Core Network,简称CN)接入业务网络。本发明描述的技术可以适用于长期演进(Long Term Evolution,简称LTE)***，或其他采用各种无线接入技术的无线通信***，例如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的***。此外，还可以适用于使用LTE***后续的演进***，如第五代5G***等。FIG. 1 is a schematic diagram of a possible application scenario of the present invention. As shown in FIG. 1 , the user equipment UE accesses the service network through a radio access network (Radio Access Network, abbreviated as follows) and a core network (Core Network, CN for short). The technology described in the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, A system of orthogonal frequency division multiple access, single carrier frequency division multiple access and other access technologies. In addition, it can also be applied to the subsequent evolution system using the LTE system, such as the fifth generation 5G system and the like.

图2是图1所示***架构的一种具体结构示意图。如图2所示，所述接入网络主要包括基站。所述核心网络EPC主要包括移动性管理实体(Mobility Management Entity)，服务网关(serving Gateway，简称SGW)，分组数据网关(Packet Data Network Gateway,简称PGW)，策略与计费规则功能单元(Policy and Charging Rules Function，简称PCRF)归属用户服务器(Home Subscriber Server,简称HSS)。FIG. 2 is a schematic diagram of a specific structure of the system architecture shown in FIG. 1. As shown in FIG. 2, the access network mainly includes a base station. The core network EPC mainly includes a mobility management entity (Mobility Management Entity), a serving gateway (SGW), a packet data network gateway (PGW), and a policy and charging rule function unit (Policy). And Charging Rules Function (PCRF) is the Home Subscriber Server (HSS).

本申请中，名词“网络”和“***”经常交替使用，但本领域的技术人员可以理解其含义。本申请所涉及到的用户设备UE可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的用户设备(User Equipment,简称UE),移动台(Mobile station,简称MS)，终端(terminal)，终端设备(Terminal Equipment)等等。为方便描述，本申请中，上面提到的设备统称为用户设备或UE。本发明所涉及到的基站(base station,简称BS)是一种部署在无线接入网中用以为UE提供无线通信功能的装置。所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的***中，具备基站功能的设备的名称可能会有所不同，例如在LTE网络中，称为演进的节点B(evolved NodeB简称：eNB或者eNodeB),在第三代3G网络中，称为节点B(Node B)等等。为方便描述，本申请中，上述为UE提供无线通信功能的装置统称为基站或BS。In the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning. The user equipment UE involved in the present application may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices or other processing devices connected to the wireless modem, and various forms of user equipment (User Equipment) , referred to as UE), mobile station (MS), terminal, terminal equipment, and so on. For convenience of description, in the present application, the devices mentioned above are collectively referred to as user equipments or UEs. A base station (BS) according to the present invention is a device deployed in a radio access network to provide a wireless communication function for a UE. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In a system using different radio access technologies, the name of a device having a base station function may be different. For example, in an LTE network, an evolved Node B (evolved Node B: eNB or eNodeB) is in the third. In the 3G network, it is called Node B and so on. For convenience of description, in the present application, the above-mentioned devices that provide wireless communication functions for the UE are collectively referred to as a base station or a BS.

在图1和图2所示的***中，涉及到的数据传输过程主要包括：UE向基站传输数据的过程、基站向UE传输数据的过程、基站向核心网络传输数据的过程、核心网络向基站传输数据的过程、核心网络设备之间的传输过程、核心网络与业务网络之间的数据传输过程以及业务网络和业务网络之间的数据传输过程。In the systems shown in FIG. 1 and FIG. 2, the data transmission process involved mainly includes: a process in which a UE transmits data to a base station, a process in which a base station transmits data to a UE, a process in which a base station transmits data to a core network, and a core network to a base station. The process of transmitting data, the transmission process between core network devices, the data transmission process between the core network and the service network, and the data transmission process between the service network and the service network.

本发明实施例提供的数据传输方法可以应用于图1和图2所示***的任一数据传输过程，尤其可以适用于UE向基站传输上行数据的过程以及基站向UE传输下行数据的过程。鉴于本发明实施例数据传输方案可以应用于不同的数据传输过程，即该方法可以由不同的设备执行，因此下文将用于执行本发明实施例数据传输方法的设备统称为数据传输设备。The data transmission method provided by the embodiment of the present invention can be applied to any data transmission process of the system shown in FIG. 1 and FIG. 2, and is particularly applicable to a process in which a UE transmits uplink data to a base station and a process in which a base station transmits downlink data to a UE. The data transmission scheme of the embodiment of the present invention can be applied to different data transmission processes, that is, the method can be performed by different devices. Therefore, the devices for performing the data transmission method of the embodiment of the present invention are collectively referred to as a data transmission device.

图3是本发明的一种可能的数据传输***的示意图。如图3所示，数据传输设备处理待传输的数据信号的过程包括：3 is a schematic diagram of one possible data transmission system of the present invention. As shown in FIG. 3, the process of the data transmission device processing the data signal to be transmitted includes:

(1)编码调制：对信息比特(即待传输的数据信号)编码调制，得到各调制符号，各调制符号调制到星座图上，如图3所示，星座图上的一个点表示一个调制符号，每个调制符号包括多个比特位，在本发明中将调制符号在星座图中所占据的位置称为符号位置。(1) Code modulation: encode and modulate information bits (ie, data signals to be transmitted) to obtain various adjustments The symbol, each modulation symbol is modulated onto the constellation diagram. As shown in FIG. 3, a point on the constellation diagram represents a modulation symbol, and each modulation symbol includes a plurality of bits. In the present invention, the modulation symbol is in the constellation diagram. The occupied position is called the symbol position.

(2)子载波映射：将星座图上的各调制符号映射到各子载波上。(2) Subcarrier mapping: mapping each modulation symbol on the constellation map to each subcarrier.

(3)快速傅里叶逆变换(英文：Inverse Fast Fourier Transform，简称：IFFT)，对步骤(2)中的调制符号进行IFFT。(3) Inverse Fast Fourier Transform (IFFR), which performs IFFT on the modulation symbols in step (2).

(4)并串变化(P/S)：对IFFT后的多路信号进行并串变换。(4) Parallel change (P/S): Perform parallel-to-serial conversion on multiple signals after IFFT.

(5)加循环前缀(英文：Cyclic Prefix，简称：CP)：并串变化后的调制符号中设置保护间隔，在保护间隔中设置CP，以降低符号间干扰。(5) Add Cyclic Prefix (English: Cyclic Prefix, abbreviated as CP): Set the guard interval in the modulation symbol after the serial string change, and set the CP in the guard interval to reduce inter-symbol interference.

(6)上变频等处理，之后通过线性功放，将信号发送给接收设备。(6) Processing such as up-conversion, and then transmitting the signal to the receiving device through the linear power amplifier.

在上述数据传输设备对数据信号进行处理的过程中，不可避免的会引入各类噪声，如相位噪声。相位噪声是一种乘性噪声，在频域表现为频谱的扩展，会引起数据传输设备输出信号相位的随机变化，相位噪声不同于加性白噪声，难以通过简单的信号累加或者信号过滤实现信号的抗干扰。为了实现对相位噪声的免疫，本发明实施例提供了一种数据传输方案，该方案充分利用了各调制符号在不同的子载波上传输时，各调制符号会具有不同的噪声容忍度，当数据信号传输失败时，数据传输设备根据各调制符号的噪声容忍度调整调制符号在星座图上的符号位置，调制符号在星座图上的位置不同所映射的子载波也会对应发生变化，即实现对各调制符号出错率的调整，数据接收设备通过至少两次接收到的数据信号解调出尽量多的正确的调制符号，从而实现在传输数据信号时不额外占用传输资源，并且能够降低相位噪声对数据信号的干扰，达到对相位干扰免疫的目的。In the process of processing the data signal by the above data transmission device, various types of noise, such as phase noise, are inevitably introduced. Phase noise is a kind of multiplicative noise. It appears as an extension of the spectrum in the frequency domain, which causes random changes in the phase of the output signal of the data transmission equipment. The phase noise is different from the additive white noise, and it is difficult to realize the signal by simple signal accumulation or signal filtering. Anti-jamming. In order to achieve immunity to phase noise, the embodiment of the present invention provides a data transmission scheme, which fully utilizes each modulation symbol to be transmitted on different subcarriers, and each modulation symbol has different noise tolerance when the data is used. When the signal transmission fails, the data transmission device adjusts the symbol position of the modulation symbol on the constellation according to the noise tolerance of each modulation symbol. The subcarriers mapped by the modulation symbols on the constellation are also changed correspondingly, that is, the pair is implemented. The adjustment of the error rate of each modulation symbol, the data receiving device demodulates as many correct modulation symbols as possible by the data signal received at least twice, thereby realizing no additional transmission resources when transmitting the data signal, and can reduce the phase noise pair. The interference of the data signal achieves the purpose of immune to phase interference.

图4是本发明实施例一数据传输方法的流程图。图4所示方法的处理步骤包括：4 is a flow chart of a data transmission method according to an embodiment of the present invention. The processing steps of the method shown in Figure 4 include:

步骤S101：数据传输设备在初次向接收设备发送数据信号时，数据传输设备按照原始星座图对各调制符号映射传输。Step S101: When the data transmission device sends the data signal to the receiving device for the first time, the data transmission device maps and transmits the modulation symbols according to the original constellation.

其中，原始星座图是数据传输对待传输的数据信号进行编码调制后生成的星座图。在原始星座图的各个符号位置上分别分布有一个调制符号。The original constellation diagram is a constellation generated by data transmission and modulation of a data signal to be transmitted. A modulation symbol is respectively distributed at each symbol position of the original constellation.

接收设备接收到来自数据传输设备的数据信号后，对数据信号进行解调，若解调失败，接收设备向数据传输设备发送数据重传指令，其中，该重传指令可以包括多种形式，如接收设备向数据传输设备发送NACK消息。After receiving the data signal from the data transmission device, the receiving device demodulates the data signal. If the demodulation fails, the receiving device sends a data retransmission instruction to the data transmission device, where the retransmission instruction may It includes various forms, such as the receiving device sending a NACK message to the data transmission device.

步骤S102：数据传输设备接收到来自接收设备的数据重传指令后，调整原始星座图中调制符号所占据的符号位置。Step S102: After receiving the data retransmission instruction from the receiving device, the data transmission device adjusts the symbol position occupied by the modulation symbol in the original constellation.

步骤S103：数据传输设备根据根据调制符号位置调整之后的星座图对调制符号映射传输。Step S103: The data transmission device transmits the modulation symbol map according to the constellation diagram adjusted according to the modulation symbol position.

数据传输设备对原始星座图上的各调制符号初次传输，当数据传输失败时，原始星座图上的调制符号可能是部分传输成功、部分传输失败，若在数据重传时，还按照原始星座图进行映射，则上一次传输失败的调制符号此次重传传输失败的可能性还是比较大，因此在本发明实施例方案中，数据传输设备接收到数据重传指令进行数据重传时，调整星座图上的调制符号所占据的符号位置，从而之前传输失败的调制符号可能会传输成功，数据接收设备将上一次和本次重传的数据符号进行合并，有可能会得到正确的传输数据，从而克服了数据传输过程中的相位干扰，而且该过程在数据传输时无需占用额外的时频资源，提高数据的传输性能。The data transmission device initially transmits each modulation symbol on the original constellation. When the data transmission fails, the modulation symbol on the original constellation may be partially transmitted successfully, partial transmission fails, and if the data is retransmitted, the original constellation is also followed. If the mapping is performed, the probability of the retransmission transmission failure of the modulation symbol of the previous transmission is relatively large. Therefore, in the solution of the embodiment of the present invention, when the data transmission device receives the data retransmission instruction for data retransmission, the constellation is adjusted. The symbol position occupied by the modulation symbol on the picture, so that the modulation symbol that failed the previous transmission may be successfully transmitted, and the data receiving device combines the data symbols of the last time and the retransmission, and may obtain the correct transmission data, thereby The phase interference in the data transmission process is overcome, and the process does not need to occupy additional time-frequency resources during data transmission, thereby improving data transmission performance.

数据传输设备按照原始星座图图上传各调制符号时，可能是部分传输成功、部分传输失败，其中部分传输成功的即可认为其噪声容忍度较高，传输失败的调制符号即可认为其噪声容忍度较低，为了使上一次传输过程中传输失败的调制符号尽可能传输成功，本发明提供了一种调整原始星座图中调制符号所占据的符号位置所可能采取的调整原则：数据传输设备调整原始星座图中噪声容忍度高的调制符号和噪声容忍度低的调制符号所占据的符号位置。由此在数据重传时，原始星座图上原来噪声容忍度低容易传输失败的调制符号重传时传输成功的概率增加，接收设备通过将上一次和本次重传接收到的数据信号进行合并得到到数据传输设备传输的正确的数据信号，从而进一步提高数据重传的成功率。When the data transmission device uploads each modulation symbol according to the original constellation diagram, it may be that part of the transmission succeeds and part of the transmission fails. If some of the transmissions are successful, the noise tolerance is high, and the modulation symbol of the transmission failure can be considered as noise tolerance. The degree is low. In order to make the transmission symbol of the transmission failure in the previous transmission process as successful as possible, the present invention provides an adjustment principle that may be adopted to adjust the symbol position occupied by the modulation symbol in the original constellation: data transmission equipment adjustment The symbol position occupied by the modulation symbol with high noise tolerance and the modulation symbol with low noise tolerance in the original constellation. Therefore, when data is retransmitted, the probability of successful transmission of the original symbol constellation with low noise tolerance and easy transmission failure is increased, and the receiving device combines the data signals received by the previous and current retransmissions. The correct data signal transmitted to the data transmission device is obtained, thereby further improving the success rate of data retransmission.

图5是本发明实施例二数据传输方法的流程图。图5所示方法的处理步骤包括：FIG. 5 is a flowchart of a data transmission method according to Embodiment 2 of the present invention. The processing steps of the method shown in Figure 5 include:

步骤S201：数据传输设备在初次向接收设备发送数据信号时，按照原始星座图进行调制符号的映射。Step S201: The data transmission device performs mapping of modulation symbols according to the original constellation diagram when transmitting the data signal to the receiving device for the first time.

步骤S202：数据传输设备接收到来自接收设备的数据重传指令后，确定原始星座图中各调制符号的噪声容忍度。Step S202: After receiving the data retransmission instruction from the receiving device, the data transmission device determines the noise tolerance of each modulation symbol in the original constellation.

图6是一种星座图的示意图。如图6所示，星座图通常包括四个象限，每个象限中均分布有多个调制符号，本发明中将每个调制符号所占据的位置称为符号位置。Figure 6 is a schematic diagram of a constellation diagram. As shown in FIG. 6, the constellation diagram generally includes four quadrants, and each of the quadrants is distributed with a plurality of modulation symbols. In the present invention, the position occupied by each modulation symbol is referred to as a symbol. position.

为了确定原始星座图中各调制符号的噪声容忍度，可以采取的一种方法是：如图6所示，预先为原始星座图中的各个符号位置设置相应的噪声容忍度，例如根据经验值预先为原始星座图中的各个符号位置设置噪声容忍度；数据传输设备接收到数据重传指令时，可以根据原始星座图中各调制符号所占据的符号位置来确定各个调制符号的噪声容忍度。In order to determine the noise tolerance of each modulation symbol in the original constellation, one method can be adopted: as shown in FIG. 6, the corresponding noise tolerance is set in advance for each symbol position in the original constellation, for example, according to the empirical value. Noise tolerance is set for each symbol position in the original constellation; when the data transmission device receives the data retransmission instruction, the noise tolerance of each modulation symbol can be determined according to the symbol position occupied by each modulation symbol in the original constellation.

步骤S203：数据传输设备根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。其中，第一类调制符号的噪声容忍度高于第二类调制符号的噪声容忍度。Step S203: The data transmission device exchanges the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols according to the noise tolerance of each modulation symbol. Wherein, the noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.

需要说明的是，本发明实施例中的第一类调制符号和第二类调制符号仅为了说明对调制符号进行位置交换是噪声容忍度比较高的调制符号与噪声容忍度比较低的调制符号之间的位置交换，在本方法的具体实施过程中并不一定包含对调制符号分类的步骤。It should be noted that, the first type of modulation symbol and the second type of modulation symbol in the embodiment of the present invention are only for explaining that the position exchange of the modulation symbol is a modulation symbol with relatively high noise tolerance and a modulation symbol with low noise tolerance. The positional exchange between the two does not necessarily include the step of classifying the modulation symbols during the implementation of the method.

如图6中，原始星座图被横纵坐标轴划分为四个象限，数据传输设备在交换调制符号所占据的符号位置时是在每个象限中分别执行交换调制符号所占据位置的动作。As shown in Fig. 6, the original constellation diagram is divided into four quadrants by the horizontal and vertical coordinate axes, and the data transmission device performs an action of exchanging the positions occupied by the modulation symbols in each quadrant when exchanging the symbol positions occupied by the modulation symbols.

可选的，数据传输设备在原始星座图的每个象限中交换第一类调制符号和第二类调制符号的一种方式可以是：Optionally, one way for the data transmission device to exchange the first type of modulation symbol and the second type of modulation symbol in each quadrant of the original constellation may be:

(1)数据传输设备根据原始星座图各个象限中调制符号噪声容忍度的高低，对各个象限中的调制符号进行排序，如按照噪声容忍度的降序顺序各调制符号的排列为A(45)、B(19.6)、C(19.6)、D(11.7)……O(8.2)、P(7.7)，A、B……P表示各调制符号，括号中的数字表示调制符号所对应的噪声容忍度。(1) The data transmission device sorts the modulation symbols in each quadrant according to the noise tolerance of the modulation symbols in each quadrant of the original constellation diagram, such as the arrangement of the modulation symbols in the descending order of the noise tolerance is A (45), B(19.6), C(19.6), D(11.7)...O(8.2), P(7.7), A, B...P denotes each modulation symbol, and the numbers in parentheses indicate the noise tolerance corresponding to the modulation symbols. .

(2)数据传输设备按照上述排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度，即A(7.7)B(8.2)、C(8.2)、D(8.3)……O(19.6)、P(45)。(2) The data transmission device re-assigns the noise tolerance of each modulation symbol according to the reverse order of the above-mentioned sorted noise tolerance, that is, A(7.7)B(8.2), C(8.2), D(8.3)...O(19.6 ), P (45).

(3)数据传输设备将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。(3) The data transmission device adjusts each modulation symbol to the symbol position corresponding to its new noise tolerance.

可选的，数据传输设备在原始星座图的每个象限中交换第一类调制符号和第二类调制符号的另一种方式可以是：Optionally, another way in which the data transmission device exchanges the first type of modulation symbols and the second type of modulation symbols in each quadrant of the original constellation may be:

确定原始星座图上的各个符号位置的噪声容忍度的分布规律，当原始星座图上的各个符号位置的噪声容忍度的分布能够确定如图6中所示的对称轴时，将关于所述对称轴对称分布的符号位置上的调制符号交换位置，如图6中，坐标容忍度为7.7的调制符号与噪声容忍度为45的调制符号关于所述对称轴对称，则对该两个符号位置上的调制符号进行交换，其它关于所述对称轴线对称的符号位置上的调制符号的交换方式与此相同，不再赘述。Determining the distribution of noise tolerance for each symbol position on the original constellation, when the original constellation The distribution of the noise tolerance of each symbol position on the above can determine the modulation symbol exchange position at the symbol position symmetrically distributed about the axis of symmetry when the axis of symmetry is as shown in FIG. 6, as in FIG. 6, coordinate tolerance A modulation symbol of 7.7 and a modulation symbol having a noise tolerance of 45 are symmetric about the axis of symmetry, and the modulation symbols at the two symbol positions are exchanged, and other modulation symbols at symbol positions symmetric about the axis of symmetry The exchange method is the same as this, and will not be described again.

图7是数据传输设备中生成的一种原始星座图的示意图，图13是图7所示星座图的表格格式；按照上述(2)中的方法对图7星座图上的各调制符号位置交换后得到图8所示的星座图，其中图14是图8所示星座图的表格格式。7 is a schematic diagram of an original constellation diagram generated in a data transmission device, and FIG. 13 is a table format of the constellation diagram shown in FIG. 7. The position of each modulation symbol on the constellation diagram of FIG. 7 is exchanged according to the method in (2) above. The constellation shown in Fig. 8 is obtained, and Fig. 14 is a table format of the constellation shown in Fig. 8.

步骤S204：数据传输设备根据调制符号交换位置之后的星座图，对各调制符号映射传输。Step S204: The data transmission device maps and transmits the modulation symbols according to the constellation diagram after the modulation symbol switching position.

本发明实施例方案中，数据传输设备根据原始星座图各个符号位置所对应的子载波的传输失败概率(此可以为历史经验值)预先为原始星座图中的各个符号位置设置噪声容忍度，当上一次根据原始星座图传输的各个调制符号需要重传时，数据传输设备根据原始星座图上各符号位置所对应的噪声容忍度，将上一次发送时占据噪声容忍度高的符号位置的调制符号调整到噪声容忍度低的符号位置上，将上一次发送时占据噪声容忍度低的调制符号调整到噪声容忍度高的符号位置上，数据接收设备接收到数据传输设备按照新的星座图发送的数据信号后，按照新的星座图进行解调，并且将本次解调出的数据与上一次解调出的数据进行合并，最大限度解调出正确的数据信号，克服相位噪声对数据信号的影响。In the solution of the embodiment of the present invention, the data transmission device sets the noise tolerance for each symbol position in the original constellation according to the transmission failure probability of the subcarrier corresponding to each symbol position of the original constellation (this may be a historical experience value). When the previous modulation symbols transmitted according to the original constellation diagram need to be retransmitted, the data transmission device will occupy the modulation symbol of the symbol position with high noise tolerance when transmitting last time according to the noise tolerance corresponding to each symbol position on the original constellation diagram. Adjusting to a symbol position with low noise tolerance, adjusting the modulation symbol with low noise tolerance at the last transmission to a symbol position with high noise tolerance, and the data receiving device receives the data transmission device according to the new constellation. After the data signal, the new constellation is demodulated, and the demodulated data is combined with the last demodulated data to maximize the demodulation of the correct data signal, overcoming the phase noise to the data signal. influences.

图9是一种相位噪声影响示意图。相位噪声对数据信号的影响表现在星座图上可以认为是调制符号的角度旋转。如图9所示，在相同的相位旋转下，位于星座图外圈的调制符号比位于星座图内圈的调制符号更容易误码，基于此，本发明还提供了数据传输方法的第三实施例，该实施例中，数据传输设备在对数据信号重传，调整原始星座图中噪声容忍度高的调制符号和噪声容忍度低的调制符号所占据的符号位置时，根据各调制符号在原始星座图中的位置，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。Figure 9 is a schematic diagram of the effect of phase noise. The effect of phase noise on the data signal is manifested in the constellation diagram as the angular rotation of the modulation symbol. As shown in FIG. 9, under the same phase rotation, the modulation symbol located on the outer circumference of the constellation is more error-coded than the modulation symbol located on the inner circumference of the constellation. Based on this, the present invention also provides a third implementation of the data transmission method. For example, in this embodiment, when the data transmission device retransmits the data signal and adjusts the symbol position occupied by the modulation symbol with high noise tolerance and the modulation symbol with low noise tolerance in the original constellation, the modulation symbol is original according to each modulation symbol. The position in the constellation map is the symbol position occupied by the modulation symbols located outside the original constellation and the modulation symbols exchanged within the outer periphery of the original constellation.

可选的，数据传输设备在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。Optionally, in each quadrant of the original constellation, the data transmission device divides the modulation symbols located outside the original constellation with the symbol positions occupied by the modulation symbols within the outer periphery of the original constellation.

数据传输设备在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置的一种方式可以是：The data transmission device will modulate the outer periphery of the original constellation in each quadrant of the original constellation One way in which the symbol and the position of the symbol occupied by the modulation symbol exchange within the outer periphery of the original constellation can be:

数据传输设备确定原始星座图中外周边的调制符号和外周边以内的调制符号进行位置交换的对应关系，数据传输设备按照上述位置交互的对应关系进行调制符号的位置交换。The data transmission device determines a correspondence between the modulation symbols of the outer periphery in the original constellation and the positional exchange of the modulation symbols within the outer periphery, and the data transmission device performs the position exchange of the modulation symbols according to the correspondence of the position interactions.

在另一种可能的实施方案中，数据传输设备在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置的一种方式还可以是：数据传输设备对原始星座图中的每个调制符号进行180度旋转后的位置，作为各调制符号的新符号位置，从而实现将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置的效果。In another possible implementation, the data transmission device, in each quadrant of the original constellation, positions the modulation symbols occupied by the modulation symbols located outside the original constellation and the modulation symbols within the outer periphery of the original constellation. One way may also be: the position of the data transmission device after 180 degrees rotation of each modulation symbol in the original constellation, as a new symbol position of each modulation symbol, thereby realizing a modulation symbol to be located outside the original constellation The effect of the symbol position occupied by the modulation symbol exchange within the outer periphery of the original constellation.

假设数据传输设备传输的原始星座图仍如图7所示，当按照本发明实施例方法对图7星座图上的各调制符号进行位置交换后仍得到图8所示的星座图。Assuming that the original constellation transmitted by the data transmission device is still as shown in FIG. 7, the constellation shown in FIG. 8 is obtained after the positional exchange of the modulation symbols on the constellation diagram of FIG. 7 is performed according to the method of the embodiment of the present invention.

数据传输设备根据新得到的星座图，重新将各调制符号映射到传输资源上传输。The data transmission device remaps each modulation symbol to a transmission resource according to the newly obtained constellation map.

在本发明的另一个可能的设计中，还提供了一种调整原始星座图中调制符号所占据的符号位置的方法，具体的，当数据传输设备接收到数据重传指令时，数据传输设备对原始星座图中的各调制符号进行预设规则的运算；数据传输设备将所述运算后得到的各调制符号调制到星座图上，得到新的星座图。In another possible design of the present invention, a method for adjusting a symbol position occupied by a modulation symbol in an original constellation is further provided. Specifically, when the data transmission device receives the data retransmission instruction, the data transmission device pairs Each modulation symbol in the original constellation diagram performs a preset rule operation; the data transmission device modulates each modulation symbol obtained by the operation onto the constellation diagram to obtain a new constellation diagram.

本发明实施例中，数据传输设备对原始星座图中的各调制符号进行的预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。In the embodiment of the present invention, the operation of the preset rule performed by the data transmission device on each modulation symbol in the original constellation includes: exchanging the order of at least two bits included in the modulation symbol, and at least two included in the modulation symbol The bit is inverted.

在可能的一种方式中，原始星座图中的每个调制符号假设包括:v_p,kv_p,k+1v_p,k+2v_p,k+3v_p,k+4v_p,k+5六个比特位。当数据设备接收到传输重传指令时，数据传输设备对原始星座图所包括的每个调制符号进行的运算可以包括：对第一比特位和第二比特位互换顺序、对第三比特位和第四比特位取反，例如原始星座图中其中的一个调制符号为110010，则得到的新的调制符号为111110。In a possible way, each modulation symbol hypothesis in the original constellation diagram includes: v _p,k v _p,k+1 v _p,k+2 v _p,k+3 v _p,k+4 v _{p , k + 5} six bits. When the data device receives the transmission retransmission instruction, the operation performed by the data transmission device on each modulation symbol included in the original constellation may include: exchanging the first bit and the second bit, and the third bit And the fourth bit is inverted, for example, one of the modulation symbols in the original constellation is 110010, and the obtained new modulation symbol is 111110.

在此种方式下，数据传输设备按照新的星座图对调制符号进行映射传输后，数据接收设备接收数据传输设备传输的各调制符号，并且对各调制符号进行上述运算的逆向运算后，再进行解调，例如数据接收设备接收到的调制符号为111110，数据接收设备将该调制符号反向运算为110010后再进行解调。 In this manner, after the data transmission device maps and transmits the modulation symbols according to the new constellation diagram, the data receiving device receives each modulation symbol transmitted by the data transmission device, and performs reverse operation of the above operation on each modulation symbol, and then performs Demodulation, for example, the modulation symbol received by the data receiving device is 111110, and the data receiving device reverse-calculates the modulation symbol to 110010 before demodulating.

图10是本发明实施例数据传输设备的一种结构示意图。如图10所示，该数据传输设备包括：接收单元301、调整单元302和发送单元303；其中：FIG. 10 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention. As shown in FIG. 10, the data transmission device includes: a receiving unit 301, an adjusting unit 302, and a sending unit 303; wherein:

接收单元301，用于接收数据重传指令；The receiving unit 301 is configured to receive a data retransmission instruction;

调整单元302，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；The adjusting unit 302 is configured to adjust, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in the original constellation;

发送单元303，用于根据调制符号位置调整之后的星座图对调制符号映射传输。The transmitting unit 303 is configured to perform mapping on the modulation symbol according to the constellation after the modulation symbol position adjustment.

可选的，所述调整单元302，具体用于：Optionally, the adjusting unit 302 is specifically configured to:

调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置；Adjusting the symbol position occupied by the first type of modulation symbol and the second type of modulation symbol in the original constellation;

其中，所述第一类调制符号的噪声容忍度高于所述第二类调制符号的噪声容忍度。The noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.

确定原始星座图中各调制符号的噪声容忍度；Determining the noise tolerance of each modulation symbol in the original constellation;

根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。The symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged according to the noise tolerance of each modulation symbol.

根据各调制符号在原始星座图中所占据的符号位置，确定各调制符号的噪声容忍度。The noise tolerance of each modulation symbol is determined based on the symbol positions occupied by the respective modulation symbols in the original constellation.

在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置。In each quadrant of the original constellation, the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged.

根据原始星座图每个象限中调制符号噪声容忍度的高低，对每个象限中的调制符号进行排序；Sorting the modulation symbols in each quadrant according to the noise tolerance of the modulation symbols in each quadrant of the original constellation;

按照排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度；Reassigning the noise tolerance of each modulation symbol according to the reverse order of the noise tolerance after sorting;

将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。Each modulation symbol is adjusted to the symbol position corresponding to its new noise tolerance.

将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。Modulation symbols located outside the original constellation and modulations located within the outer perimeter of the original constellation The symbol position occupied by the symbol exchange.

在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In each quadrant of the original constellation, the modulation symbols occupying the outer periphery of the original constellation are separated from the symbol positions occupied by the modulation symbols located within the outer periphery of the original constellation.

对原始星座图中的各调制符号进行预设规则的运算；Performing a preset rule operation on each modulation symbol in the original constellation diagram;

将所述运算后得到的各调制符号调制到星座图上。Each modulation symbol obtained after the operation is modulated onto a constellation diagram.

可选的，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。Optionally, the operation of the preset rule includes: exchanging an order of at least two bits included in the modulation symbol, and negating at least two bits included in the modulation symbol.

在本发明的另一个实施例中，在硬件实现上，可以由一个发射机执行发送单元303的功能，可以由一个接收机执行接收单元301的功能，或者发送单元303和接收单元301的功能可以由一个收发信机执行。调整单元302可以采用硬件形式内嵌于或独立于数据传输设备的处理器中，也可以以软件形式存储于数据传输设备的存储器中，以便于处理器调用执行以上各个单元对应的操作。In another embodiment of the present invention, in hardware implementation, the function of the transmitting unit 303 may be performed by one transmitter, the function of the receiving unit 301 may be performed by one receiver, or the functions of the transmitting unit 303 and the receiving unit 301 may be Executed by a transceiver. The adjusting unit 302 may be embedded in the hardware of the data transmission device in hardware or may be stored in the memory of the data transmission device in software, so that the processor calls to perform operations corresponding to the above units.

如图10所示，上述数据传输设备的各单元之间可以通过通信总线的方式相互连接。图中未示，上述各设备内的各单元也可以采用其他连接方式连接，本发明实施例对此不做特别限定。As shown in FIG. 10, the units of the above data transmission device can be connected to each other by means of a communication bus. It is not shown in the drawings, and the units in the above-mentioned respective devices may be connected by other connection methods, which is not particularly limited in the embodiment of the present invention.

本发明实施例的数据传输设备在实际的数据传输***中的一种可能是用户设备UE。图11示出了UE的一种可能的设计结构的简化示意图。所述UE包括发射器401，接收器402，控制器/处理器403，存贮器404和调制解调处理器405。One of the actual data transmission systems of the data transmission device of the embodiment of the present invention may be the user equipment UE. Figure 11 shows a simplified schematic diagram of one possible design structure of a UE. The UE includes a transmitter 401, a receiver 402, a controller/processor 403, a memory 404, and a modem processor 405.

控制器/处理器403调节(例如，模拟转换、滤波、放大和上变频等)输出采样并生成上行链路信号，该上行链路信号经由发射器401发射给基站。在下行链路上，接收器402接收上述实施例中基站发射的下行链路信号。控制器/处理器403调节(例如，滤波、放大、下变频以及数字化等)从接收器402接收的信号并提供输入采样。在调制解调处理器405中，编码器406接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器407进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器409处理(例如，解调)该输入采样并提供符号估计。解码器408处理(例如，解交织和解码)该符号估计并提供发送给UE的已解码的数据和信令消息。编码器406、调制器407、解调器409和解码器408可以由合成的调制解调处理器405来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进***的接入技术)来进行处理。控制器/处理器403还用于对UE的动作进行控制管理，用于执行上述方法实施例中所述的数据传输方法。存储器404用于存储用于UE 40的程序代码和数据。具体的：The controller/processor 403 conditions (e.g., analog conversion, filtering, amplifying, upconverting, etc.) the output samples and generates an uplink signal that is transmitted to the base station via the transmitter 401. On the downlink, the receiver 402 receives the downlink signal transmitted by the base station in the above embodiment. The controller/processor 403 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the signals received from the receiver 402 and provides input samples. In modem processor 405, encoder 406 receives the traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, codes, and interleaves) the traffic data and signaling messages. Modulator 407 further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples. Demodulator 409 processes (e.g., demodulates) the input samples and provides symbol estimates. The decoder 408 processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to the UE. Encoder 406, modulator 407, demodulator 409, and decoder 408 may be implemented by a composite modem processor 405. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems). Controller/processor 403 is also used The control of the action of the UE is performed to perform the data transmission method described in the foregoing method embodiment. Memory 404 is used to store program code and data for UE 40. specific:

接收器402，用于接收数据重传指令；a receiver 402, configured to receive a data retransmission instruction;

控制器/处理器403，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；a controller/processor 403, configured to adjust, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in an original constellation;

发射器401，用于根据调制符号位置调整之后的星座图对调制符号映射传输。The transmitter 401 is configured to perform modulation symbol mapping transmission according to the constellation diagram after the modulation symbol position adjustment.

在一种可能的设计中，所述控制器/处理器403，具体用于：In a possible design, the controller/processor 403 is specifically configured to:

将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。A symbol position occupied by a modulation symbol located outside the original constellation and a modulation symbol located within the outer periphery of the original constellation.

在一种可能的设计中，所述控制器/处理器403，具体用于： In a possible design, the controller/processor 403 is specifically configured to:

在一种可能的设计中，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。In a possible design, the operation of the preset rule comprises: transposing the order of at least two bits included in the modulation symbol, and negating at least two bits included in the modulation symbol.

发明实施例的数据传输设备在实际的数据传输***中还可能是基站。图12示出了基站的一种可能的结构示意图。如图12所示，基站包括发射器/接收器501,控制器/处理器502，存储器503以及通信单元504。所述发射器/接收器501用于接收数据重传指令，以及支持所述UE与其他UE之间进行无线电通信。所述控制器/处理器502执行各种用于与UE通信的功能。在上行链路，来自所述UE的上行链路信号经由天线接收，由接收器501进行调解，并进一步由控制器/处理器502进行处理来恢复UE所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由控制器/处理器502进行处理，并由发射器501进行调解来产生下行链路信号，并经由天线发射给UE。控制器/处理器502还执行图4和图5中的数据传输过程和/或用于本申请所描述的数据传输方法。存储器503用于存储基站的程序代码和数据。本发明实施例方案中，发射器/接收器501和控制器/处理器502配合执行本发明实施例的数据传输方法，具体执行过程参见图11装置的执行过程，区别之处在于，本发明实施例中将发射器和接收器集成为一体。The data transmission device of the embodiment of the invention may also be a base station in an actual data transmission system. Figure 12 shows a possible schematic diagram of a base station. As shown in FIG. 12, the base station includes a transmitter/receiver 501, a controller/processor 502, a memory 503, and a communication unit 504. The transmitter/receiver 501 is configured to receive a data retransmission instruction and to support radio communication between the UE and other UEs. The controller/processor 502 performs various functions for communicating with the UE. On the uplink, the uplink signal from the UE is received via the antenna, coordinated by the receiver 501, and further processed by the controller/processor 502 to recover the service data and signaling information transmitted by the UE. On the downlink, traffic data and signaling messages are processed by controller/processor 502 and mediated by transmitter 501 to generate downlink signals for transmission to the UE via the antenna. Controller/processor 502 also performs the data transfer process of Figures 4 and 5 and/or the data transfer method described herein. The memory 503 is used to store program codes and data of the base station. In the solution of the embodiment of the present invention, the transmitter/receiver 501 and the controller/processor 502 cooperate to perform the data transmission method of the embodiment of the present invention. For the specific implementation process, refer to the execution process of the device in FIG. 11 , which is different in the implementation of the present invention. In the example, the transmitter and receiver are integrated into one.

可以理解的是，图12仅仅示出了基站的简化设计。在实际应用中，基站可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明的基站都在本发明的保护范围之内。It will be appreciated that Figure 12 only shows a simplified design of the base station. In practical applications, the base station may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention are within the scope of the present invention.

本发明实施例提供的数据传输装置，如UE和基站能够执行上述方法实施例中的数据传输方法，并且在传输数据信号时不额外占用传输资源，并且能够降低相位噪声对数据信号的干扰。The data transmission apparatus provided by the embodiment of the present invention, such as the UE and the base station, can perform the data transmission method in the foregoing method embodiment, and does not additionally occupy the transmission resource when transmitting the data signal, and can reduce the interference of the phase noise on the data signal.

进一步，用于执行本发明上述UE和基站功能的控制器/处理器可以是中央处理器(CPU)，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)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。Further, the controller/processor for performing the above-described UE and base station functions of the present invention may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and a field programmable gate. Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

结合本发明公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于用户设备中。当然，处理器和存储介质也可以作为分立组件存在于用户设备中。The steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions. Software instructions can be made by the corresponding software module Composition, software modules may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment. Of course, the processor and the storage medium may also reside as discrete components in the user equipment.

还应理解，在本发明的各种实施例中，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。It should also be understood that, in various embodiments of the present invention, the size of the sequence numbers of the processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as an embodiment of the present invention. The implementation process constitutes any limitation.

应理解，在本发明实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of cells is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention by any person skilled in the art. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

一种数据传输方法，其特征在于，包括：A data transmission method, comprising:

接收数据重传指令；Receiving a data retransmission instruction;

根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；Adjusting, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in the original constellation;

根据调制符号位置调整之后的星座图对调制符号映射传输。The modulation symbol mapping is transmitted according to the constellation diagram after the modulation symbol position adjustment.
根据权利要求1所述的方法，其特征在于，所述调整原始星座图中调制符号所占据的符号位置，包括：The method according to claim 1, wherein said adjusting a symbol position occupied by a modulation symbol in an original constellation includes:

调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置；Adjusting the symbol position occupied by the first type of modulation symbol and the second type of modulation symbol in the original constellation;

其中，所述第一类调制符号的噪声容忍度高于所述第二类调制符号的噪声容忍度。The noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.
根据权利要求2所述的方法，其特征在于，调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置，包括：The method according to claim 2, wherein adjusting the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols in the original constellation includes:

确定原始星座图中各调制符号的噪声容忍度；Determining the noise tolerance of each modulation symbol in the original constellation;

根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。The symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged according to the noise tolerance of each modulation symbol.
根据权利要求3所述的方法，其特征在于，所述确定原始星座图中各调制符号的噪声容忍度，包括：The method according to claim 3, wherein the determining the noise tolerance of each modulation symbol in the original constellation includes:

根据各调制符号在原始星座图中所占据的符号位置，确定各调制符号的噪声容忍度。The noise tolerance of each modulation symbol is determined based on the symbol positions occupied by the respective modulation symbols in the original constellation.
根据权利要求3或4所述的方法，其特征在于，所述根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置，包括：The method according to claim 3 or 4, wherein the exchanging symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols according to noise tolerance of each modulation symbol comprises:

在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置。In each quadrant of the original constellation, the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged.
根据权利要求5所述的方法，其特征在于，所述在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置，包括：The method according to claim 5, wherein said exchanging symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols in each quadrant of the original constellation includes:

根据原始星座图每个象限中调制符号噪声容忍度的高低，对每个象限中的调制符号进行排序；Sorting the modulation symbols in each quadrant according to the noise tolerance of the modulation symbols in each quadrant of the original constellation;

按照排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度；Reassigning the noise tolerance of each modulation symbol according to the reverse order of the noise tolerance after sorting;

将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。Each modulation symbol is adjusted to the symbol position corresponding to its new noise tolerance.
根据权利要求1或2所述的方法，其特征在于，调整原始星座图中噪声调制符号所占据的符号位置，包括：Method according to claim 1 or 2, characterized in that the noise in the original constellation is adjusted The symbol position occupied by the modulation symbol, including:

将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。A symbol position occupied by a modulation symbol located outside the original constellation and a modulation symbol located within the outer periphery of the original constellation.
根据权利要求7所述的方法，其特征在于，所述将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置，包括：The method according to claim 7, wherein the symbol position occupied by the modulation symbol located outside the original constellation and the modulation symbol located within the outer periphery of the original constellation includes:

在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In each quadrant of the original constellation, the modulation symbols occupying the outer periphery of the original constellation are separated from the symbol positions occupied by the modulation symbols located within the outer periphery of the original constellation.
根据权利要求1所述的方法，其特征在于，调整原始星座图中调制符号所占据的符号位置，包括：The method of claim 1 wherein adjusting the symbol position occupied by the modulation symbols in the original constellation includes:

对原始星座图中的各调制符号进行预设规则的运算；Performing a preset rule operation on each modulation symbol in the original constellation diagram;

将所述运算后得到的各调制符号调制到星座图上。Each modulation symbol obtained after the operation is modulated onto a constellation diagram.
根据权利要求9所述的方法，其特征在于，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。The method according to claim 9, wherein the operation of the preset rule comprises: transposing the order of at least two bits included in the modulation symbol, and inverting at least two bits included in the modulation symbol. .
一种数据传输设备，其特征在于，包括：A data transmission device, comprising:

接收单元，用于接收数据重传指令；a receiving unit, configured to receive a data retransmission instruction;

调整单元，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；And an adjusting unit, configured to adjust, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in the original constellation;

发送单元，用于根据调制符号位置调整之后的星座图对调制符号映射传输。And a sending unit, configured to perform modulation symbol mapping transmission according to the constellation diagram after the modulation symbol position adjustment.
根据权利要求11所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 11, wherein the adjusting unit is specifically configured to:

调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置；Adjusting the symbol position occupied by the first type of modulation symbol and the second type of modulation symbol in the original constellation;

其中，所述第一类调制符号的噪声容忍度高于所述第二类调制符号的噪声容忍度。The noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.
根据权利要求12所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 12, wherein the adjusting unit is specifically configured to:

确定原始星座图中各调制符号的噪声容忍度；Determining the noise tolerance of each modulation symbol in the original constellation;

根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。The symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged according to the noise tolerance of each modulation symbol.
根据权利要求13所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 13, wherein the adjusting unit is specifically configured to:

根据各调制符号在原始星座图中所占据的符号位置，确定各调制符号的噪声容忍度。The noise tolerance of each modulation symbol is determined based on the symbol positions occupied by the respective modulation symbols in the original constellation.
根据权利要求13或14所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 13 or 14, wherein the adjusting unit is specific Used for:

在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置。In each quadrant of the original constellation, the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged.
根据权利要求15所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 15, wherein the adjusting unit is specifically configured to:

根据原始星座图每个象限中调制符号噪声容忍度的高低，对每个象限中的调制符号进行排序；Sorting the modulation symbols in each quadrant according to the noise tolerance of the modulation symbols in each quadrant of the original constellation;

按照排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度；Reassigning the noise tolerance of each modulation symbol according to the reverse order of the noise tolerance after sorting;

将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。Each modulation symbol is adjusted to the symbol position corresponding to its new noise tolerance.
根据权利要求11或12所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 11 or 12, wherein the adjusting unit is specifically configured to:

将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。A symbol position occupied by a modulation symbol located outside the original constellation and a modulation symbol located within the outer periphery of the original constellation.
根据权利要求17所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 17, wherein the adjusting unit is specifically configured to:

在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In each quadrant of the original constellation, the modulation symbols occupying the outer periphery of the original constellation are separated from the symbol positions occupied by the modulation symbols located within the outer periphery of the original constellation.
根据权利要求11所述的设备，其特征在于，所述调整单元，具体用于：The device according to claim 11, wherein the adjusting unit is specifically configured to:

对原始星座图中的各调制符号进行预设规则的运算；Performing a preset rule operation on each modulation symbol in the original constellation diagram;

将所述运算后得到的各调制符号调制到星座图上。Each modulation symbol obtained after the operation is modulated onto a constellation diagram.
根据权利要求19所述的设备，其特征在于，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。The apparatus according to claim 19, wherein the operation of the preset rule comprises: transposing an order of at least two bits included in the modulation symbol, and inverting at least two bits included in the modulation symbol .
一种数据传输设备，其特征在于，包括：A data transmission device, comprising:

接收器，用于接收数据重传指令；a receiver for receiving a data retransmission instruction;

处理器，用于根据所述数据重传指令，调整原始星座图中调制符号所占据的符号位置；a processor, configured to adjust, according to the data retransmission instruction, a symbol position occupied by a modulation symbol in the original constellation;

发射器，用于根据调制符号位置调整之后的星座图对调制符号映射传输。And a transmitter, configured to perform modulation symbol mapping transmission according to a constellation diagram after modulation symbol position adjustment.
根据权利要求21所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 21, wherein the processor is specifically configured to:

调整原始星座图中第一类调制符号和第二类调制符号所占据的符号位置；Adjusting the symbol position occupied by the first type of modulation symbol and the second type of modulation symbol in the original constellation;

其中，所述第一类调制符号的噪声容忍度高于所述第二类调制符号的噪声容忍度。The noise tolerance of the first type of modulation symbols is higher than the noise tolerance of the second type of modulation symbols.
根据权利要求22所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 22, wherein the processor is specifically configured to:

确定原始星座图中各调制符号的噪声容忍度； Determining the noise tolerance of each modulation symbol in the original constellation;

根据各调制符号的噪声容忍度，交换第一类调制符号和第二类调制符号所占据的符号位置。The symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged according to the noise tolerance of each modulation symbol.
根据权利要求23所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 23, wherein the processor is specifically configured to:

根据各调制符号在原始星座图中所占据的符号位置，确定各调制符号的噪声容忍度。The noise tolerance of each modulation symbol is determined based on the symbol positions occupied by the respective modulation symbols in the original constellation.
根据权利要求23或24所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 23 or 24, wherein the processor is specifically configured to:

在原始星座图的每个象限中，交换第一类调制符号和第二类调制符号所占据的符号位置。In each quadrant of the original constellation, the symbol positions occupied by the first type of modulation symbols and the second type of modulation symbols are exchanged.
根据权利要求25所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 25, wherein the processor is specifically configured to:

根据原始星座图每个象限中调制符号噪声容忍度的高低，对每个象限中的调制符号进行排序；Sorting the modulation symbols in each quadrant according to the noise tolerance of the modulation symbols in each quadrant of the original constellation;

按照排序后噪声容忍度的反序顺序重新赋予各个调制符号噪声容忍度；Reassigning the noise tolerance of each modulation symbol according to the reverse order of the noise tolerance after sorting;

将各个调制符号调整到其新的噪声容忍度所对应的符号位置上。Each modulation symbol is adjusted to the symbol position corresponding to its new noise tolerance.
根据权利要求21或22所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 21 or 22, wherein the processor is specifically configured to:

将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。A symbol position occupied by a modulation symbol located outside the original constellation and a modulation symbol located within the outer periphery of the original constellation.
根据权利要求27所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 27, wherein the processor is specifically configured to:

在原始星座图的每个象限中，将位于原始星座图外周边的调制符号与位于原始星座图外周边以内的调制符号交换所占据的符号位置。In each quadrant of the original constellation, the modulation symbols occupying the outer periphery of the original constellation are separated from the symbol positions occupied by the modulation symbols located within the outer periphery of the original constellation.
根据权利要求21所述的设备，其特征在于，所述处理器，具体用于：The device according to claim 21, wherein the processor is specifically configured to:

对原始星座图中的各调制符号进行预设规则的运算；Performing a preset rule operation on each modulation symbol in the original constellation diagram;

将所述运算后得到的各调制符号调制到星座图上。Each modulation symbol obtained after the operation is modulated onto a constellation diagram.
根据权利要求29所述的设备，其特征在于，所述预设规则的运算包括：调换调制符号所包括的至少两个比特位的顺序、对调制符号所包括的至少两个比特位进行取反。 The apparatus according to claim 29, wherein the operation of the preset rule comprises: exchanging an order of at least two bits included in the modulation symbol, and inverting at least two bits included in the modulation symbol .