WO2012163041A1

WO2012163041A1 - Multiple access system, method and device based on orthogonal frequency-division multiplexing

Info

Publication number: WO2012163041A1
Application number: PCT/CN2011/081825
Authority: WO
Inventors: 潘稻; 孙方林; 梁海祥
Original assignee: 华为技术有限公司
Priority date: 2011-11-04
Filing date: 2011-11-04
Publication date: 2012-12-06
Also published as: CN102696210A

Abstract

Embodiments of the present invention provide a multiple access system, method and device based on orthogonal frequency-division multiplexing. The multiple access system based on orthogonal frequency-division multiplexing comprises a transmitting end and a receiving end. The transmitting end determines one or more resource blocks that support service data transmission of a specific user terminal, and maps service data and a resource home identification of the specific user terminal to the one or more resource blocks to generate multi-carrier signals modulated by multiple sub-carriers, the resource home identification being mapped in a control resource area in a specific resource block. The receiving end identifies the resource block belonging to the specific user terminal according to the resource home identification mapped in the control resource area in the specific resource block, and acquires the service data from a data resource area in the resource block of the specific user terminal.

Description

基于正交频分复用的多址***、方法和装置 Multiple access system, method and device based on orthogonal frequency division multiplexing

技术领域 Technical field

本发明涉及通信技术，具体涉及一种基于正交频分复用（Orthogonal frequency-division multiplexing, OFDM) 的多址***、方法和装置。背景技术多址（Multiple Access) 技术是指把处于不同位置的多个用户接入一个公共传输媒质，实现各用户通信的技术。多址技术用于共享介质场景，通常包括无线通信，有线通信如同轴电缆网络（Coaxial cable)接入、电力线接入等等。多址技术又称为"多址连接"技术。多址技术通常包括时分多址、频分多址、码分多址等等。 The present invention relates to communication technologies, and in particular, to a multiple access system, method and apparatus based on Orthogonal Frequency-Division Multiplexing (OFDM). BACKGROUND OF THE INVENTION Multiple Access technology refers to a technology that connects multiple users in different locations to a common transmission medium to implement communication between users. Multiple access technology is used to share media scenarios, typically including wireless communications, wired communications such as Coaxial cable access, power line access, and more. Multiple access technology is also known as "multiple access" technology. Multiple access techniques typically include time division multiple access, frequency division multiple access, code division multiple access, and the like.

OFDM 是一种多载波调制技术，在许多文献中 OFDM 也被称为离散多音频 OFDM is a multi-carrier modulation technique. In many literatures, OFDM is also called discrete multi-audio.

(Discrete Multitone, DMT)_D OFDM是将高速数据流分割成多个低速数据流，将多个低速数据流并行调制在多个彼此正交的子载波上传送。 OFDM 的各子载波是相互正交的，每个子载波的周期在一个 OFDM符号周期内都与其他子载波保持整倍数的关系，每个子载波与相邻子载波相差 1个周期。 OFDM能够广泛地用于各种宽带无线和有线通信中，如无线局域网、数字用户线（Digital Subscriber Line, DSL) ***中。 (Discrete Multitone, DMT) _D OFDM is a method of dividing a high-speed data stream into a plurality of low-speed data streams, and transmitting a plurality of low-speed data streams in parallel on a plurality of mutually orthogonal subcarriers. Each subcarrier of OFDM is mutually orthogonal, and the period of each subcarrier maintains an integral multiple relationship with other subcarriers in one OFDM symbol period, and each subcarrier is different from adjacent subcarriers by one cycle. OFDM can be widely used in various broadband wireless and wired communications, such as wireless local area networks, Digital Subscriber Line (DSL) systems.

基于 OFDM调制技术的多址技术一般包括两种，一是基于 OFDM 的时分多址 (Time Division Multiple Access, TDM A) 技术，另一种是正交频分多址 (Orthogonal Frequency Division Multiple Access, OFDMA) 技术。基于 OFDM调制的时分多址技术，以 OFDM符号为基本单元进行时分多址，同一网络的不同用户之间通过分配不同时间片上 OFDM符号来实现资源的分配，实现多址接入。 The multiple access technology based on OFDM modulation technology generally includes two types, one is OFDM-based Time Division Multiple Access (TDM A) technology, and the other is Orthogonal Frequency Division Multiple Access (OFDMA). ) Technology. The time division multiple access technology based on OFDM modulation performs time division multiple access with OFDM symbols as a basic unit, and different users in the same network realize resource allocation by allocating different OFDM symbols on the same side to realize multiple access.

OFDMA可以应用于全球微波互联接入（Worldwide Interoperability for Microwave Access, WiMAX) 长期演进（Long Term Evolution, LTE) 等以及有线电视同轴网络等通信领域。在 OFDMA技术中，传输资源在时域上被分为若干预定长度的符号，而在频域上被划分成正交的互不重叠的一系列子载波。由此，针对每个传输帧，形成了时域和频域两个维度上的 OFDMA传输资源。进一步， OFDMA传输资源可以分配给多个不同用户终端，通过将该 OFDMA传输资源划分成多个资源块，并将各个资源块分配给相应的用户来实现多用户接入。其中，在本文中，资源块可以指 OFDMA 传输资源的最小划分单元。基于不同的应用场景，资源块可以呈现为不同的形式，例如可以是 LTE相关协议中定义的物理资源块（Physical Resource Block, PRB) WiMAX 技术中涉及的时隙（slot) 等。 OFDMA can be applied to communications such as Worldwide Interoperability for Microwave Access (WiMAX) Long Term Evolution (LTE) and cable TV coaxial networks. In OFDMA technology, a transmission resource is divided into a number of symbols of a predetermined length in the time domain, and is divided into orthogonal series of subcarriers that do not overlap each other in the frequency domain. Thus, for each transmission frame, OFDMA transmission resources in both the time domain and the frequency domain are formed. Further, the OFDMA transmission resource may be allocated to a plurality of different user terminals, and the multi-user access is realized by dividing the OFDMA transmission resource into a plurality of resource blocks and allocating each resource block to a corresponding user. Herein, a resource block may refer to a minimum division unit of an OFDMA transmission resource. Resource blocks can be presented in different forms based on different application scenarios. For example, it may be a physical resource block (PRB) defined in the LTE related protocol, or a slot involved in the WiMAX technology.

现有技术中，通常采用独立的公共资源，将所有用户终端的资源分配信息及调制编码信息通过广播式的通告给接入的多用户终端。用户终端需要维护独立的公共资源获得广播通告的资源分配信息及调制编码信息，以便后续定位属于用户终端自己的承载业务数据的 OFDM帧。这种方式的弊端是需要在独立的公共资源承载资源分配信息、调制编码信息等等，对资源的占用较大。 In the prior art, the resource allocation information and the modulation and coding information of all user terminals are generally broadcasted to the accessed multi-user terminal by using independent public resources. The user terminal needs to maintain independent public resources to obtain resource allocation information and modulation and coding information of the broadcast announcement, so as to subsequently locate the OFDM frame belonging to the user terminal's own bearer service data. The disadvantage of this method is that it needs to carry resource allocation information, modulation and coding information, etc. in independent public resources, and occupy a large amount of resources.

发明内容 Summary of the invention

为解决上述技术问题，本发明提供了基于 OFDM的多址***、方法和装置。本发明一方面提供了一种发送方法，该发送方法应用于基于正交频分复用的多址 ***，包括：确定支持特定用户终端的业务数据传输的一个或多个资源块，所述一个或多个资源块的特定资源块包含控制资源区和数据资源区，每一个资源块包括数据资源区；将特定用户终端的业务数据和资源归属标识映射到所述一个或多个资源块以生成通过多个子载波调制的多载波信号，其中，所述资源归属标识被映射到所述控制资源区；发送所述多载波信号。 To solve the above technical problems, the present invention provides an OFDM-based multiple access system, method and apparatus. An aspect of the present invention provides a transmitting method applied to a multiple access system based on orthogonal frequency division multiplexing, including: determining one or more resource blocks supporting service data transmission of a specific user terminal, the one Or a specific resource block of the multiple resource blocks includes a control resource area and a data resource area, each resource block includes a data resource area; mapping service data and resource attribution identifier of the specific user terminal to the one or more resource blocks to generate a multicarrier signal modulated by a plurality of subcarriers, wherein the resource home identity is mapped to the control resource region; the multicarrier signal is transmitted.

本发明另一方面提供了一种接收方法，该接收方法应用于基于正交频分复用的多址***，包括：接收通过多个子载波调制的多载波信号，所述多个子载波对应多个资源块，所述多个资源块中的特定资源块包含控制资源区和数据资源区；从所述特定资源块内控制资源区对应的多个子载波中获得资源归属标识；根据资源归属标识确定所述特定资源块属于特定用户终端；从所述特定资源块的数据资源区对应的子载波中获得业务数据。 Another aspect of the present invention provides a receiving method, which is applied to a multiple access system based on orthogonal frequency division multiplexing, and includes: receiving a multi-carrier signal modulated by a plurality of sub-carriers, where the plurality of sub-carriers correspond to multiple a resource block, the specific resource block of the plurality of resource blocks includes a control resource area and a data resource area; obtaining a resource attribution identifier from a plurality of subcarriers corresponding to the control resource area in the specific resource block; determining, according to the resource attribution identifier The specific resource block belongs to a specific user terminal; the service data is obtained from the subcarrier corresponding to the data resource region of the specific resource block.

本发明另一方面提供了一种装置，该装置应用于基于正交频分复用的多址***，包括：资源控制模块，用于确定支持特定用户终端业务数据传输的一个或多个资源块，生成控制指令，该控制指令指示将包含资源归属标识的控制信息映射到所述一个或多个资源块的特定资源块； Another aspect of the present invention provides an apparatus for applying to a multiple access system based on orthogonal frequency division multiplexing, comprising: a resource control module, configured to determine one or more resource blocks supporting service data transmission of a specific user terminal Generating a control instruction, the control instruction indicating mapping control information including a resource home identity to a specific resource block of the one or more resource blocks;

信号生成模块，用于响应所述控制指令，将包含资源归属标识的控制信息映射到所述特定资源块内的控制资源区，并在所述一个或多个资源块内的数据资源区映射所述特定用户终端的业务数据，输出所述至少一个或多个资源块内通过多载波调制的多载波信号； a signal generating module, configured to: in response to the control instruction, map control information including a resource attribution identifier to a control resource region in the specific resource block, and map the data resource region in the one or more resource blocks Deriving the service data of the specific user terminal, outputting the multi-carrier modulation in the at least one or more resource blocks Carrier signal

发送模块，用于将映射模块输出的多载波信号。 A sending module, configured to output a multi-carrier signal of the mapping module.

本发明再一方面提供了一种装置，应用于基于正交频分复用的多址***的接收端，该装置包括： A further aspect of the present invention provides an apparatus for a receiving end of a multiple access system based on orthogonal frequency division multiplexing, the apparatus comprising:

接收模块，用于接收通过多个子载波调制的多载波信号，所述多个子载波对应多个资源块，所述多个资源块中的特定资源块包括控制资源区和数据资源区； a receiving module, configured to receive a multi-carrier signal modulated by multiple sub-carriers, where the multiple sub-carriers correspond to multiple resource blocks, where a specific resource block includes a control resource area and a data resource area;

控制信息检测模块，用于从所述控制资源区的子载波中获得包含资源归属标识的控制信息，并将控制信息发送给资源控制模块； a control information detecting module, configured to obtain control information including a resource attribution identifier from the subcarriers in the control resource region, and send the control information to the resource control module;

资源控制模块，用于根据资源归属标识确定所述特定资源块属于特定用户终端，并生成控制指令，该控制指令指示数据提取模块接收多载波信号并从所述特定资源块的数据区对应的子载波中获取业务数据；数据提取模块，用于根据资源控制模块的指示，从所述特定资源块的数据区对应子载波中获得业务数据。 a resource control module, configured to determine, according to the resource attribution identifier, that the specific resource block belongs to a specific user terminal, and generate a control instruction, where the control instruction instructs the data extraction module to receive the multi-carrier signal and obtain a sub-correspondence from the data area of the specific resource block The service data is obtained from the carrier; the data extraction module is configured to obtain the service data from the corresponding subcarriers of the data area of the specific resource block according to the indication of the resource control module.

本发明再一方面还提供了一种基于正交频分复用的多址***，包括设置于局端和用户终端的装置。采用本发明的方案，可以实现一种更健壮的信息交互，以避免无法解调集中广播消息而带来的后果，并可以为***提供更少的时延，带来更好的用户体验。附图说明为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，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。 Still another aspect of the present invention provides a multiple access system based on orthogonal frequency division multiplexing, including a device disposed at a central office and a user terminal. With the solution of the present invention, a more robust information interaction can be realized to avoid the consequences of not being able to demodulate the centralized broadcast message, and can provide less delay for the system and bring a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those of ordinary skill in the art without departing from the scope of the invention.

图 1示出了根据本发明实施例的发送方法； FIG. 1 illustrates a transmitting method according to an embodiment of the present invention;

图 2示出了根据本发明实施例的接收方法； FIG. 2 illustrates a receiving method according to an embodiment of the present invention; FIG.

图 3示出了根据本发明一个实施例的划分的资源块； Figure 3 illustrates a divided resource block in accordance with one embodiment of the present invention;

图 4示出了根据本发明另一个实施例的划分的资源块； FIG. 4 illustrates a divided resource block according to another embodiment of the present invention;

图 5示出了根据本发明一个实施例的资源块映射的示意图； Figure 5 shows a schematic diagram of resource block mapping in accordance with one embodiment of the present invention;

图 6示出了根据本发明一个实施例的 0FDMA***中的装置； Figure 6 shows an apparatus in an 0FDMA system in accordance with one embodiment of the present invention;

图 7示出了根据本发明实施例的 0FDMA***中的装置；图 8示出了根据本发明一个实施例的无线通信***；以及 Figure 7 illustrates an apparatus in an OFDM system in accordance with an embodiment of the present invention; Figure 8 illustrates a wireless communication system in accordance with one embodiment of the present invention;

图 9示出了根据本发明一个实施例的有线通信***。 Figure 9 illustrates a wired communication system in accordance with one embodiment of the present invention.

具体实施方式 detailed description

下面对根据本发明实施例的基于 OFDM的多址（Multiple Access)***、各种方法和装置进行详细说明。 The OFDM-based multiple access system, various methods and apparatus according to an embodiment of the present invention are described in detail below.

在本发明的各种实施例中，基于 OFDM的多址***中包括局端和多个用户终端。局端和用户终端之间支持双向传输：在局端到用户终端传输方向，局端是发送端、用户终端是接收端；在用户终端到局端传输方向，用户终端是发送端，局端是接收端。本发明各实施例中的用户终端是指具有 OFDM调制器的终端设备，可以是移动终端设备、 WiFi终端设备、 WiMax终端设备、 LTE终端设备、 Cable接入终端等的任意设备。本发明的局端可以是无线通信***的基站，也可以是有线通信***的头端或中心站。 In various embodiments of the invention, an OFDM-based multiple access system includes a central office and a plurality of user terminals. Two-way transmission is supported between the central office and the user terminal: in the transmission direction from the central office to the user terminal, the central office is the transmitting end, and the user terminal is the receiving end; in the user terminal to the central office transmission direction, the user terminal is the transmitting end, and the central office is Receiving end. The user terminal in the embodiments of the present invention refers to a terminal device having an OFDM modulator, and may be any device such as a mobile terminal device, a WiFi terminal device, a WiMax terminal device, an LTE terminal device, a cable access terminal, or the like. The central office of the present invention may be a base station of a wireless communication system or a head end or a central station of a wired communication system.

本发明实施例提供的基于 OFDM的多址***可以是基于 OFDM调制的频分多址 *** （即 OFDMA***），或者基于 OFDM调制的时分多址***。 OFDMA***中，多个用户终端频域上基于频分复用共享可用频域资源，每一个用户终端可以分配到多个子载波，多个用户终端的子载波可以不同。在基于 OFDM调制的时分多址***中，多个用户终端的子载波相同，时域上基于时分复用共享可用时域资源。 The OFDM-based multiple access system provided by the embodiment of the present invention may be a frequency division multiple access system based on OFDM modulation (i.e., OFDMA system), or a time division multiple access system based on OFDM modulation. In an OFDMA system, multiple user terminals share available frequency domain resources based on frequency division multiplexing in the frequency domain. Each user terminal may be allocated multiple subcarriers, and the subcarriers of multiple user terminals may be different. In a time division multiple access system based on OFDM modulation, the subcarriers of a plurality of user terminals are the same, and the time domain resources are shared based on time division multiplexing in the time domain.

发送端和接收端之间时频资源可被划分成多个资源块，每一个资源块频域上占用多个子载波，时域上占用一定时间长度的二维时频资源区。时域上占用的一定时间长度可以根据需要设定，例如 OFDM符号周期的整数倍。通常每一个资源块占用多个子载波以及多个符号，以 1个符号长度为时域上最小划分单位为例，占用 1个子载波以及 1个符号的时频资源称作一个资源单元（Resource Element, RE), 则每一个资源块包括多个资源单元。在 OFDMA***中，***中可用时频资源的资源块可以在时域和频域两个维度进行；基于 OFDM调制的时分多址***中， ***中可用时频资源的资源块仅需在时域一个维度进行。 The time-frequency resource between the transmitting end and the receiving end can be divided into multiple resource blocks, each of which occupies multiple sub-carriers in the frequency domain, and the two-dimensional time-frequency resource region occupying a certain length of time in the time domain. The length of time occupied in the time domain can be set as needed, for example, an integer multiple of the OFDM symbol period. Generally, each resource block occupies multiple subcarriers and multiple symbols. Taking one symbol length as the smallest unit in the time domain as an example, a time-frequency resource occupying one subcarrier and one symbol is called a resource element (Resource Element, RE), then each resource block includes multiple resource units. In an OFDMA system, resource blocks of time-frequency resources available in the system can be performed in two dimensions: time domain and frequency domain; in a time division multiple access system based on OFDM modulation, resource blocks of available time-frequency resources in the system need only be in the time domain. One dimension is carried out.

在本发明提供的传输方法和***中，至少部分资源块，其二维时频资源区可以划分成至少两个子区，至少一个子区用作控制资源区，至少一个子区用作数据资源区。在控制资源区映射资源归属标识以便于接收端识别资源块的归属。主要包括如下内容。在发送端上的处理包括： S110 步骤中，确定支持特定用户终端的业务数据传输的一个或多个资源块，所述一个或多个资源块的特定资源块包含控制资源区和数据资源区，每一个资源块包括数据资源区； S120 步骤中，将特定用户终端的业务数据和资源归属标识映射到所述一个或多个资源块以生成通过多个子载波调制的多载波信号，其中，所述资源归属标识被映射到所述控制资源区； S130 步骤中，发送所述多载波信号。 In the transmission method and system provided by the present invention, at least part of the resource blocks, the two-dimensional time-frequency resource region may be divided into at least two sub-regions, at least one sub-region is used as a control resource region, and at least one sub-region is used as a data resource region. . The resource attribution identifier is mapped in the control resource region so that the receiving end identifies the attribution of the resource block. It mainly includes the following contents. The processing on the transmitting end includes: in step S110, determining one or more resource blocks supporting service data transmission of a specific user terminal, where the specific resource block of the one or more resource blocks includes a control resource area and a data resource area, Each resource block includes a data resource area; in step S120, mapping service data and resource home identity of a specific user terminal to the one or more resource blocks to generate a multi-carrier signal modulated by multiple sub-carriers, where The resource attribution identifier is mapped to the control resource region; in step S130, the multi-carrier signal is transmitted.

在接收端上的处理包括：步骤 S210中，接收通过多个子载波调制的多载波信号，所述多个子载波对应多个资源块，每一个资源块包括数据资源区。多个资源块包括至少一个特定资源块，每个一特定包含控制资源区和数据资源区。步骤 S220中，特定资源块内控制资源区对应的子载波中获得资源归属标识；步骤 S230中，根据资源归属标识确定特定资源块属于特定用户终端；步骤 S240中，从所述特定资源块的数据资源区对应的子载波中获得所述特定用户终端的业务数据。在发送端上，控制区还可映射该特定用户终端资源块的资源分配信息，资源归属标识和资源分配信息的组合信息用于标识映射有该特定用户终端的业务数据的资源块，以便于接收端根据资源归属标识和资源分配信息的组合信息确定该特定用户终端所有的资源块，并接收确定的资源块上的业务数据。相应的，在发送端上，资源归属标识和资源分配信息的组合信息标识的所有资源块上映射该特定用户终端的业务数据。 The processing on the receiving end includes: Step S210: Receive a multi-carrier signal modulated by multiple sub-carriers, where the multiple sub-carriers correspond to multiple resource blocks, and each resource block includes a data resource area. A plurality of resource blocks include at least one specific resource block, each of which specifically includes a control resource area and a data resource area. In step S220, the resource attribution identifier is obtained in the subcarrier corresponding to the control resource region in the specific resource block. In step S230, the specific resource block belongs to the specific user terminal according to the resource attribution identifier. In step S240, the data from the specific resource block is obtained. The service data of the specific user terminal is obtained in a subcarrier corresponding to the resource area. On the transmitting end, the control area may also map the resource allocation information of the resource block of the specific user terminal, and the combination information of the resource attribution identifier and the resource allocation information is used to identify the resource block mapped with the service data of the specific user terminal, so as to be convenient to receive. The terminal determines all the resource blocks of the specific user terminal according to the combination information of the resource attribution identifier and the resource allocation information, and receives the service data on the determined resource block. Correspondingly, on the transmitting end, the service data of the specific user terminal is mapped on all resource blocks identified by the combination information of the resource attribution identifier and the resource allocation information.

相应的，在接收端上的处理还可以包括：从控制区对应的子载波中获得资源块分配信息，利用资源归属标识和资源块分配信息的组合信息确定该特定用户终端的所有资源块，从所有的资源块的数据资源区对应的子载波中获得所述特定用户终端的业务数据。 Correspondingly, the processing on the receiving end may further include: obtaining resource block allocation information from the subcarriers corresponding to the control area, and determining, by using the combination information of the resource attribution identifier and the resource block allocation information, all resource blocks of the specific user terminal, The service data of the specific user terminal is obtained from the subcarriers corresponding to the data resource areas of all the resource blocks.

上述的资源归属标识用于标识用户终端，可以是用户终端的物理标识，如终端标识（Terminal Identifier) 端口标识、终端序列码、地址信息（如网际协议（Internet Protocol, IP)地址或媒体访问控制（Media Access Control, MAC)地址等）的一种或多种的组合；资源归属标识也可以是用户终端的逻辑标识，如分配给该用户终端的用户标识（User Identifier), 逻辑链路标识。一个用户终端可以包含一个或多个逻辑链路标识，每一个逻辑链路标识对应唯一一个用户终端，这样***可以通过对逻辑链路的管理来实现不同业务的服务质量（Quality of Service, ) 等。这种情况下接收端需要通过逻辑链路标识来检测资源 /数据的归属，这可以应用于基于 OFDM的无源光网络***中。资源归属标识也可以是用户终端的物理标识和逻辑标识的组合。 The resource attribution identifier is used to identify the user terminal, and may be a physical identifier of the user terminal, such as a terminal identifier (Terminal Identifier) port identifier, a terminal sequence code, and address information (such as an Internet Protocol (IP) address or media access control. A combination of one or more of the (Media Access Control, MAC) addresses, etc.; the resource attribution identifier may also be a logical identifier of the user terminal, such as a User Identifier assigned to the user terminal, and a logical link identifier. A user terminal may include one or more logical link identifiers, and each logical link identifier corresponds to a unique one of the user terminals, so that the system can implement quality of service (Quality of Service, etc.) for different services by managing logical links. . In this case, the receiving end needs to detect the attribution of resources/data through the logical link identifier, which can be applied to the OFDM-based passive optical network. In the network system. The resource attribution identifier may also be a combination of a physical identifier and a logical identifier of the user terminal.

接收端在用户终端，如特定用户终端上的情况，接收端可以根据资源归属标识判断资源的归属，特别是判断是否属于本用户终端。如果接收端从另一个资源块 A 内的控制区中获得资源归属标识 A，根据资源归属标识 A判断资源块 A不属于本用户终端，则不对资源块 A进一步处理。接收端在局端上的情况，接收端可以根据资源归属标识判断资源来自哪个用户终端，从而针对相同用户终端的业务流进行流量统计、性能监控、业务 QoS调度等一个或多个的处理。 When the receiving end is on the user terminal, such as a specific user terminal, the receiving end may determine the attribution of the resource according to the resource attribution identifier, and in particular, determine whether it belongs to the user terminal. If the receiving end obtains the resource attribution identifier A from the control region in another resource block A, and according to the resource attribution identifier A, it is determined that the resource block A does not belong to the user terminal, and the resource block A is not further processed. When the receiving end is on the central office, the receiving end may determine, according to the resource attribution identifier, which user terminal the resource comes from, and perform one or more processes such as traffic statistics, performance monitoring, and service QoS scheduling for the service flow of the same user terminal.

资源归属标识可以占用一定比特，例如可以用 6个比特支持 64个用户；还可以采用一定比特做循环冗余校验（Cyclic Redundancy Check, CRC) 以保证资源归属标识的正确性。此外，对资源归属标识还可以进行简单的编码承载在相应的子载波中，这些都是为了资源归属标识能够正确无误的被获取。 The resource attribution identifier can occupy a certain number of bits. For example, 64 users can be supported by 6 bits. A Cyclic Redundancy Check (CRC) can also be used to ensure the correctness of the resource attribution identifier. In addition, the resource attribution identifier can also be simply encoded and carried in the corresponding subcarriers, which are all obtained for the resource attribution identifier to be correctly and correctly obtained.

在本发明的实施例扩展中，控制区还可以映射用于描述发送端到接收端的资源块的资源属性信息，接收端可以根据该资源属性信息对资源块对应的子载波进行相应的接收处理。例如，资源属性信息包含编码和调制方案等级信息，接收端可根据该编码和调制方案等级信息对资源块的数据区对应的子载波进行相应的解调和解码处理。再如，资源属性信息包含发送端到接收端的多载波信号的功率控制信息，接收端可根据该功率控制信息对资源块的数据区对应的子载波进行相应的滤波参数调整和增益参数调整的至少一种接收处理。 In an extension of the embodiment of the present invention, the control area may further map resource attribute information for describing a resource block from the sender to the receiver, and the receiving end may perform corresponding receiving processing on the sub-carrier corresponding to the resource block according to the resource attribute information. For example, the resource attribute information includes coding and modulation scheme level information, and the receiving end may perform corresponding demodulation and decoding processing on the subcarriers corresponding to the data area of the resource block according to the coding and modulation scheme level information. For example, the resource attribute information includes power control information of the multi-carrier signal from the transmitting end to the receiving end, and the receiving end may perform corresponding filtering parameter adjustment and gain parameter adjustment on the sub-carrier corresponding to the data area of the resource block according to the power control information. A receiving process.

每一个资源块均可以包含数据资源区和控制资源区，接收端可以根据控制资源区的资源归属标识识别其所在资源块发往哪个用户终端（接收端在用户终端上）或来自哪个用户终端（接收端在局端上）。 Each resource block may include a data resource area and a control resource area, and the receiving end may identify, according to the resource attribution identifier of the control resource area, which user terminal to which the resource block is located (the receiving end is on the user terminal) or from which user terminal ( The receiving end is on the central office).

在本发明实施例中，控制资源区分布在优先遍历的符号和子载波上，其中，接收端从时间和频率轴上遍历资源块，优先时间。通常，频域上，控制资源区的起始子载波和其所在资源块的起始子载波一致，子载波的个数小于或等于其所在资源块的子载波个数。时域上，控制资源区占用时间轴上起始的一段时间长度。例如，控制资源区占用了其所在资源块的所有子载波，时域上控制资源区和数据资源区时分复用。 In the embodiment of the present invention, the control resource region is distributed on the symbols and subcarriers that are traversed preferentially, wherein the receiving end traverses the resource blocks from the time and frequency axes, and the priority time. Generally, in the frequency domain, the starting subcarrier of the control resource region is consistent with the starting subcarrier of the resource block in which it is located, and the number of subcarriers is less than or equal to the number of subcarriers of the resource block in which it is located. On the time domain, the control resource area occupies a length of time starting on the time axis. For example, the control resource area occupies all subcarriers of the resource block in which it resides, and the control resource area and the data resource area are time division multiplexed in the time domain.

根据本发明实施例，提供了一种发送方法，该方法可应用于包含局端和多个用户终端的多址接入***。通常，局端和用户终端之间支持双向传输。为清楚起见，将用于局端到用户终端的传输的资源块称作下行资源块，将用于用户终端到局端的传输的资源块称作上行资源块。下面以下行传输为例对本发明发送方法进行描述。局端为用户终端分配支持下行业务数据传输的下行资源块。用户终端至少包括特定用户终端，局端可以为激活的任何用户终端分配下行资源块。局端可以按照一定的分配周期周期性的为用户终端分配下行资源块，所分配的资源块的资源块分配信息可以存储到局端的易失性或非易失性存储介质中，以提供业务映射时使用。 According to an embodiment of the present invention, a transmitting method is provided, which is applicable to a multiple access system including a central office and a plurality of user terminals. Generally, bidirectional transmission is supported between the central office and the user terminal. For the sake of clarity, a resource block for transmission from the central office to the user terminal is referred to as a downlink resource block, and a resource block for transmission of the user terminal to the central office is referred to as an uplink resource block. The following transmission method is taken as an example to describe the transmission method of the present invention. The central office allocates a downlink resource block for supporting the downlink service data transmission to the user terminal. The user terminal includes at least For a user terminal, the central office can allocate a downlink resource block for any user terminal that is activated. The central office may periodically allocate a downlink resource block to the user terminal according to a certain allocation period, and the resource block allocation information of the allocated resource block may be stored in a volatile or non-volatile storage medium of the central office to provide service mapping. When used.

局端将用户终端的业务数据和资源归属标识分别映射到资源块的数据资源区和控制资源区以生成该资源块对应的多载波信号；资源归属标识可以表示资源块和用户终端的归属关系。例如，在分配给特定用户终端的资源块中既包含数据资源区又包含控制资源区，局端在这两个资源区分别映射该用户终端的业务数据和资源归属标识，以便于用户终端可以在识别该资源归属标识后，从相应资源块的数据区对应的子载波中获得业务数据。局端可以在特定用户终端的每一个下行资源块的控制资源区映射资源归属标识，用于标识该下行资源块和该特定用户终端的归属关系。局端也可以在特定用户终端的多个下行资源块的部分资源块，如首资源块，的控制资源区映射用户归属标识和资源块分配信息，特定用户终端可以用资源分配信息来确定其它资源块。 The central office maps the service data and the resource attribution identifier of the user terminal to the data resource area and the control resource area of the resource block respectively to generate a multi-carrier signal corresponding to the resource block; the resource attribution identifier may represent a belonging relationship between the resource block and the user terminal. For example, the resource block allocated to the specific user terminal includes both the data resource area and the control resource area, and the central office separately maps the service data and the resource attribution identifier of the user terminal in the two resource areas, so that the user terminal can After identifying the resource attribution identifier, the service data is obtained from the subcarrier corresponding to the data area of the corresponding resource block. The central office may map the resource attribution identifier in the control resource region of each downlink resource block of the specific user terminal, and identify the affiliation relationship between the downlink resource block and the specific user terminal. The central office may also map user attribution identifiers and resource block allocation information in a part of resource blocks of a plurality of downlink resource blocks of a specific user terminal, such as a control resource region of the first resource block, and the specific user terminal may use resource allocation information to determine other resources. Piece.

对于同一个用户终端，不同资源块中的资源归属标识相同，资源属性信息可以不同。采用这种方案，因为每一个下行资源块都包含资源归属标识，可以采用资源归属标识来表示下行资源块，不需要在公共的控制信息资源块中广播多个用户终端的下行资源块的资源块分配信息。在本发明的另一个实施例中，在分配给一个用户终端多个连续的下行资源块时，仅需在一个资源块（如首资源块）中映射资源归属标识和资源块分配信息，采用这种方式也比在公共的控制信息资源块中广播多个用户终端的下行资源块的资源块分配信息的延迟更小，且资源块传输周期比控制信息资源块的调度周期短，调度更灵活。 For the same user terminal, the resource attribution identifiers in different resource blocks are the same, and the resource attribute information may be different. With this scheme, since each downlink resource block includes a resource attribution identifier, the resource attribution identifier may be used to represent the downlink resource block, and the resource block of the downlink resource block of multiple user terminals does not need to be broadcast in the common control information resource block. Assign information. In another embodiment of the present invention, when allocating a plurality of consecutive downlink resource blocks to one user terminal, only the resource attribution identifier and the resource block allocation information need to be mapped in one resource block (such as the first resource block), and this is adopted. The method also has a smaller delay than the resource block allocation information of the downlink resource blocks of the plurality of user terminals in the common control information resource block, and the resource block transmission period is shorter than the scheduling period of the control information resource block, and the scheduling is more flexible.

控制资源区中还可以包含上行资源块的资源属性信息，例如指示上行 OFDM符号发送的定时提前（Timing Advance, TA) 信息。将上述 TA信息提供给用户终端，可以使得用户终端将当前发送定时参考调整 TA信息指示的偏移量。采用这种方式，仅需要定时相对偏移量可以减少定时的复杂程度，而且信息量少。 The control resource area may further include resource attribute information of the uplink resource block, for example, Timing Advance (TA) information indicating the uplink OFDM symbol transmission. The TA information is provided to the user terminal, so that the user terminal can adjust the offset of the current transmission timing reference indication by the TA information. In this way, only the timing relative offset is required to reduce the complexity of the timing, and the amount of information is small.

与发送方法类似，根据本发明实施例，提供了一种接收方法，该方法可应用于包含局端和多个用户终端的多址***。下面以下行传输为例对本发明接收方法进行描述，其包括以下内容。接收端接收通过多个子载波调制的多载波信号，所述多个子载波对应多个下行资源块，至少一个特定下行资源块包含控制资源区和数据资源区。用户终端从控制资源区对应的子载波中获得资源归属标识，根据资源归属标识确定该特定下行资源块属于特定用户终端，因而从所述特定下行资源块的数据资源区对应的子载波中获得业务数据。接收端还从控制资源区对应的子载波中获得资源块分配信息，基于资源归属标识和资源块分配信息确定属于特定用户终端的所有下行资源块，并从下行资源块的数据区对应的子载波中获得业务数据。接收端还可以检测控制区中的资源属性信息，根据资源属性信息对下行资源块数据区对应的子载波进行相应的接收处理。例如，资源属性信息包括数据区的调制和编码方案等级信息，接收端可以根据调制和编码方案等级信息对数据区对应的子载波进行相应的解调和解码处理。又如，资源属性信息包括下行资源块子载波的功率控制信息，接收端可以根据功率控制信息对子载波滤波参数、增益参数调整。上述接收端可以位于或本身是特定用户终端。上述接收处理方法可以应用于多址***的任意一个用户终端。 Similar to the transmission method, according to an embodiment of the present invention, a receiving method is provided, which is applicable to a multiple access system including a central office and a plurality of user terminals. The receiving method of the present invention will be described below by taking the following line transmission as an example, which includes the following contents. The receiving end receives the multi-carrier signal modulated by the multiple sub-carriers, where the multiple sub-carriers correspond to multiple downlink resource blocks, and the at least one specific downlink resource block includes the control resource area and the data resource area. The user terminal obtains the resource attribution identifier from the subcarrier corresponding to the control resource region, and determines that the specific downlink resource block belongs to the specific user terminal according to the resource attribution identifier, and thus obtains the service from the subcarrier corresponding to the data resource region of the specific downlink resource block. Number According to. The receiving end further obtains resource block allocation information from the subcarriers corresponding to the control resource region, and determines all downlink resource blocks belonging to the specific user terminal based on the resource attribution identifier and the resource block allocation information, and the subcarriers corresponding to the data region of the downlink resource block. Get business data. The receiving end may also detect resource attribute information in the control area, and perform corresponding receiving processing on the subcarriers corresponding to the downlink resource block data area according to the resource attribute information. For example, the resource attribute information includes modulation and coding scheme level information of the data area, and the receiving end may perform corresponding demodulation and decoding processing on the subcarriers corresponding to the data area according to the modulation and coding scheme level information. For another example, the resource attribute information includes power control information of the downlink resource block subcarrier, and the receiving end may adjust the subcarrier filtering parameter and the gain parameter according to the power control information. The above receiving end may be located or itself a specific user terminal. The above receiving processing method can be applied to any one of the user terminals of the multiple access system.

在本发明的另一个实施例中，在 OFDMA多址接入场景下，在当前传输周期（或称传输时隙）的下行资源块中承载的资源块信息的资源块信息，仅被应用于后续一个或多个传输周期内下行资源块 ,， RB_{D Tk+2 0} 换句话说，应用资源块信息的下行资源块时域上落后于承载资源块信息的下行资源块至少一个传输周期，资源块信息不会应用于当前传输周期的下行资源块。采用下行资源块^—^中的信息对预定的后续传输周期内的下行资源块 ,， R¾ ₂上的信号处理，可以给用户终端提供足够的准备时间，减少同步的复杂度和延迟的影响。以保证用户终端有足够的时间准备，平滑切换。其中，下角标 D表示下行， Tk、 Tk+1、 Tk+2分别表示第 k、 k+l、 K+2个传输周期。 In another embodiment of the present invention, in an OFDMA multiple access scenario, resource block information of resource block information carried in a downlink resource block of a current transmission period (or a transmission slot) is only applied to subsequent The downlink resource block in one or more transmission periods, RB _{D Tk+2 0} In other words, the downlink resource block in which the resource block information is applied lags behind the downlink resource block carrying the resource block information in the time domain, at least one transmission period, the resource block The information will not be applied to the downstream resource blocks of the current transmission cycle. By using the information in the downlink resource block ^-^ for the downlink resource block in the predetermined subsequent transmission period, the signal processing on the R3⁄4 ₂ can provide sufficient preparation time for the user terminal, and reduce the synchronization complexity and the delay effect. In order to ensure that the user terminal has enough time to prepare, smooth switching. Wherein, the lower corner symbol D represents the downlink, and Tk, Tk+1, and Tk+2 represent the kth, k+1, and K+2 transmission periods, respectively.

在用户终端到局端的传输方向的方法中，以特定终端为例，特定用户终端通过从局端下发的上行资源块的资源块分配信息确定上行资源块，该上行资源块的资源块分配信息可以是下行资源块的控制区发送过来，也可以采用现有的方式通过广播通道下发。特定用户终端发送的上行资源块也可被划分成数据资源区和控制资源区，特定用户终端可以在控制资源区映射资源归属标识，表示所发送的上行资源块和用户终端的归属关系，即所发送的上行资源块是该特定用户终端发送的。此外，该特定用户终端也可以在控制资源区映射上行资源块的资源块分布信息以便于局端根据资源归属标识和资源块分配信息的组合信息确定该特定用户终端的所有上行资源块。控制资源区还可以映射用户资源请求信息或资源状态信息以便于局端根据控制资源区的这些信息为用户终端分配上行资源块。相应的，局端接收通过多个子载波调制的多载波信号，所述多个子载波对应多个上行资源块，至少一个上行资源块包含控制资源区和数据资源区。局端从控制资源区对应的子载波中获得资源归属标识，根据资源归属标识确定包含资源归属标识的上行资源块属于特定用户终端，从所述包含资源归属标识的上行资源块的数据资源区对应的子载波中获得业务数据。局端还从控制资源区对应的子载波中获得资源块分配信息，基于资源归属标识和资源块分配信息的组合信息确定属于该特定用户终端的所有上行资源块，并从上行资源块的数据区对应的子载波中获得业务数据。局端还可以检测控制区中的资源属性信息，根据资源属性信息对上行资源块数据区对应的子载波进行相应的接收处理。例如，资源属性信息包括数据区的调制和编码方案等级信息局端可以根据调制和编码方案等级信息对数据区对应的子载波进行相应的解调和解码处理。又如，资源属性信息包括上行资源块子载波的功率控制信息，局端可以根据功率控制信息对子载波滤波参数、增益参数调整。 In the method of the user terminal to the transmission direction of the central office, the specific user terminal is used as an example, and the specific user terminal determines the uplink resource block by using the resource block allocation information of the uplink resource block that is sent by the central office, and the resource block allocation information of the uplink resource block. It can be sent by the control channel of the downlink resource block, or it can be delivered through the broadcast channel in the existing mode. The uplink resource block sent by the specific user terminal may also be divided into a data resource area and a control resource area, and the specific user terminal may map the resource attribution identifier in the control resource area, indicating the affiliation relationship between the sent uplink resource block and the user terminal, that is, The uplink resource block sent is sent by the specific user terminal. In addition, the specific user terminal may also map resource block distribution information of the uplink resource block in the control resource area, so that the central office determines all uplink resource blocks of the specific user terminal according to the combination information of the resource home identity and the resource block allocation information. The control resource area may also map the user resource request information or the resource status information so that the central office allocates the uplink resource block to the user terminal according to the information of the control resource area. Correspondingly, the central office receives the multi-carrier signal modulated by the multiple sub-carriers, where the multiple sub-carriers correspond to multiple uplink resource blocks, and the at least one uplink resource block includes the control resource area and the data resource area. The central office obtains the resource attribution identifier from the subcarrier corresponding to the control resource region, and determines that the uplink resource block that includes the resource home identifier belongs to the specific user terminal according to the resource attribution identifier, and corresponds to the data resource region of the uplink resource block that includes the resource attribution identifier. Obtain business data in the subcarriers. The central office further obtains resource block allocation information from the subcarriers corresponding to the control resource region, and determines, according to the combination information of the resource attribution identifier and the resource block allocation information, all uplink resource blocks belonging to the specific user terminal, and the data region of the uplink resource block. The service data is obtained in the corresponding subcarrier. The central office may also detect resource attribute information in the control area, and perform corresponding receiving processing on the subcarriers corresponding to the uplink resource block data area according to the resource attribute information. For example, the resource attribute information includes a modulation and coding scheme level information of the data area. The central office may perform corresponding demodulation and decoding processing on the subcarriers corresponding to the data area according to the modulation and coding scheme level information. For another example, the resource attribute information includes power control information of the uplink resource block subcarrier, and the central office may adjust the subcarrier filtering parameter and the gain parameter according to the power control information.

图 3示出了根据本发明一个基于 OFDMA多址接入实施例的资源块。 Figure 3 illustrates a resource block based on an OFDMA multiple access embodiment in accordance with the present invention.

在图 3中，通过黑色的方框示出了资源块的示例。连续的 N个符号及连续的 M 个子载波。 M和 N是大于等于 2的正整数。在图 3所示的实施例中，资源块在时域上占用连续的若干个符号，在频域上也占有连续的若干子载波。尽管图 3中仅示出一个资源块，但需要指出的是，所划分的各个资源块的大小可以相同，也可以不同。 In Fig. 3, an example of a resource block is shown by a black box. Continuous N symbols and consecutive M subcarriers. M and N are positive integers greater than or equal to 2. In the embodiment shown in Figure 3, the resource block occupies consecutive symbols in the time domain and also contiguous several subcarriers in the frequency domain. Although only one resource block is shown in FIG. 3, it should be noted that the size of each of the divided resource blocks may be the same or different.

例如，在图 3所示的实施例的一个改型中，考虑到实现上性能的影响，资源块中包括的 N个符号及 M个子载波也可以是不连续的，也可以采用分散的子载波或分散的符号。各个资源块是大小可变的。不同资源块大小可以相同，也可以不同。 For example, in a modification of the embodiment shown in FIG. 3, the N symbols and the M subcarriers included in the resource block may also be discontinuous in consideration of the impact on performance, and scattered subcarriers may also be used. Or scattered symbols. Each resource block is variable in size. Different resource blocks can be the same size or different.

此外，在图 3所示的实施例的又一个改型中，作为一种更为灵活的实现方式，资源块占用的符号和子载波都可以是不连续的。即，由多个分散的符号和多个分散的子载波构成一个资源块。并且类似地，各个资源块的大小可以相同，也可以不同。 Furthermore, in a further modification of the embodiment shown in Fig. 3, as a more flexible implementation, the symbols and subcarriers occupied by the resource block may be discontinuous. That is, one resource block is composed of a plurality of dispersed symbols and a plurality of dispersed subcarriers. And similarly, the size of each resource block may be the same or different.

图 3 所示的实施例以及本文提及的和其它未提及的各种改型例如可以适用于 LTE的应用场景。 The embodiment shown in Fig. 3, as well as various modifications mentioned herein and not mentioned, can be applied, for example, to the application scenario of LTE.

图 4示出了根据本发明另一个基于 OFDMA多址接入实施例的划分的资源块。在图 4所示的实施例中，可以为用户终端（例如，数据量较大的用户终端）分配多个连续的资源块（在时域或频域上连续）。多个连续的资源块形成资源块组（Resource Block Group, RBG), 如 RBG1， RBG2, ···， RBG5。 4 illustrates another partitioned resource block based on an OFDMA multiple access embodiment in accordance with the present invention. In the embodiment shown in Figure 4, a plurality of consecutive resource blocks (continuous in the time or frequency domain) may be allocated for user terminals (e.g., user terminals having a large amount of data). A plurality of consecutive resource blocks form a Resource Block Group (RBG), such as RBG1, RBG2, ···, RBG5.

在图 4中，以黑色框示出了针对各个用户终端分配的资源块组。 In Fig. 4, resource block groups allocated for respective user terminals are shown in black boxes.

需要指出的是，在图 4所示的实施例中，资源块组包含的资源块的数目可以相同，也可以不相同。此外，如图 4所示，在时域上最靠前的多个资源块中将频域处于第一位的资源块定义为首资源块，如图 RB1， RB2, …， RB5。图 4仅为示例，本发明不限于此，例如，也可以在频域上最靠前的多个资源块中将时域处于第一位的资源块定义为首资源块。 It should be noted that, in the embodiment shown in FIG. 4, the number of resource blocks included in the resource block group may be the same. It can also be different. In addition, as shown in FIG. 4, the resource block with the first bit in the frequency domain is defined as the first resource block in the plurality of resource blocks in the top of the time domain, as shown in FIG. RB1, RB2, ..., RB5. FIG. 4 is only an example, and the present invention is not limited thereto. For example, a resource block in which the time domain is in the first bit may be defined as the first resource block among the plurality of resource blocks in the highest frequency domain.

图 4所示的实施例例如可以适用于 WiMax的应用场景。 The embodiment shown in FIG. 4 can be applied, for example, to an application scenario of WiMax.

所述资源属性信息可以包括所划分的资源块上的调制和 /或编码方案的等级信息。多个调制方案中每一个调制方案可以对应一个传输等级。多个编码方案中每一个编码方案可以对应一个传输等级。调制和编码方案进行组合形成多个调制编码组合方案，每一个方案对应一个传输等级。在局端和用户终端上都可配置调制和 /或编码方案和等级的对应关系，每一个等级对应一个调制额 /或编码方案。这样，局端将调制和 /或编码方案的等级信息。发送给用户终端，用户终端便可以根据等级信息确定相应的调制和 /或编码方案。 The resource attribute information may include rating information of a modulation and/or coding scheme on the partitioned resource blocks. Each of the plurality of modulation schemes may correspond to one transmission level. Each of the plurality of coding schemes may correspond to one transmission level. The modulation and coding schemes are combined to form a plurality of modulation and coding combinations, each of which corresponds to a transmission level. The correspondence between modulation and/or coding schemes and levels can be configured on both the central office and the user terminal, each level corresponding to a modulation amount/or coding scheme. In this way, the central office will modulate and/or encode the level information of the scheme. Sended to the user terminal, the user terminal can determine the corresponding modulation and/or coding scheme based on the level information.

调制方案，应用于子载波调制，包括但不限于四相相移键控（Quadrature Phase Shift Keying, QPSK)、 16进制正交幅度调制（ 16 Quadrature Amplitude Modulation, 16QAM)、 256进制正交幅度调制（256 Quadrature Amplitude Modulation, 256QAM) 等。编码方案，应用于数据编码，包括但不限于信道编码的方法或编码参数，如码率、码块大小等。在具体实施的时候，可将不同的调制方案和编码方案做一个归类，最终列出若干种调制编码方案的组合，如 LTE 技术中的调制编码方案（Modulation and Coding Scheme, MCS)。 Modulation scheme, applied to subcarrier modulation, including but not limited to Quadrature Phase Shift Keying (QPSK), 16 Quadrature Amplitude Modulation (16QAM), 256-ary quadrature amplitude Modulation (256 Quadrature Amplitude Modulation, 256QAM), etc. The coding scheme is applied to data coding, including but not limited to channel coding methods or coding parameters such as code rate, code block size and the like. In the specific implementation, different modulation schemes and coding schemes can be classified, and finally a combination of several modulation and coding schemes, such as Modulation and Coding Scheme (MCS) in LTE technology.

上述资源属性信息可以以各种格式进行封装，例如采用类型一长度一值 The above resource attribute information may be encapsulated in various formats, for example, using a type one length and one value.

(Type-Length-Value) 的格式进行封装。资源属性信息的每一种信息都可以分配一个类型值，该类型值用于标识资源属性信息的信息类型。 The format of (Type-Length-Value) is encapsulated. Each type of information of the resource attribute information can be assigned a type value, which is used to identify the type of information of the resource attribute information.

图 5示出了根据本发明一个基于 0FDMA多址接入实施例的资源块映射的示意图。在图 5中，以黑色的方框示出为每个用户终端分配的资源块。在图 5所示的实施例中，每个资源块可以包括 N个符号和 M个子载波。其中，阴影填充的方格表示控制资源区，白色表示数据资源区。如图 5所示，可以在每个资源块的时域上第一个符号、频域上 M个子载波中的 6个子载波的时频资源区作为控制资源区，在控制资源区上承载资源块信息。例如，在图 5所示的实施例中，可以在每个资源块的时域上第一个 OFDM符号、频域上前 6个子载波的时频资源被定义为控制资源区。此外，控制资源区时域上可以占用多个 OFDM符号长度，频域上也不仅限于 6个子载波，可以占用整个资源块的所有子载波。需要指出的是，图 5所示的实施例也仅为示例，本发明不限于此。事实上，下行资源块中用于承载资源块信息的子载波可以是资源块的任意位置。这些子载波可以是位于第一个 OFDM符号的若干子载波，也可以位于第二个、第三个符号的，进一步的还可以是分散个同一资源块中多个不同符号位置的子载波。 Figure 5 shows a schematic diagram of resource block mapping based on an OFDM multi-access embodiment in accordance with the present invention. In FIG. 5, resource blocks allocated for each user terminal are shown in black boxes. In the embodiment shown in FIG. 5, each resource block may include N symbols and M subcarriers. Among them, the shaded square represents the control resource area, and the white represents the data resource area. As shown in FIG. 5, a time-frequency resource region of 6 subcarriers of the M subcarriers in the first symbol and the frequency domain of each resource block may be used as a control resource region, and a resource block is carried on the control resource region. information. For example, in the embodiment shown in FIG. 5, the first OFDM symbol in the time domain of each resource block and the time-frequency resource of the first 6 subcarriers in the frequency domain may be defined as a control resource region. In addition, the control resource area may occupy multiple OFDM symbol lengths in the time domain, and is not limited to 6 subcarriers in the frequency domain, and may occupy all subcarriers of the entire resource block. It should be noted that the embodiment shown in FIG. 5 is also merely an example, and the present invention is not limited thereto. In fact, the subcarrier used in the downlink resource block for carrying resource block information may be any location of the resource block. The subcarriers may be located in a plurality of subcarriers of the first OFDM symbol, or may be located in the second and third symbols, and may further be subcarriers in which a plurality of different symbol positions in the same resource block are dispersed.

上述实施例都是描述了基于 OFDMA的多址***的实施例，下面简单描述下基于 The above embodiments are all embodiments of an OFDMA-based multiple access system, which is based on the following brief description.

OFDM调制下时分多址接入的实施例。 An embodiment of time division multiple access under OFDM modulation.

在基于 OFDM调制的时分多址接入场景下，资源的基本单元是 OFDM符号，同样的，将一个 OFDM符号对应一个资源块的话， ***可以将一个 OFDM符号上固定位置的若干子载波用来承载资源归属标识及 /或调制编码信息，这样接收端在接收到所述 OFDM符号后，就可以通过解调固定位置的子载波来获取这些信息。同样的为了所有用户终端都能解调出这些信息，一般的对这些子载波采用固定的调制编码方式。这样， ***就节省了专门的符号开支来承载这些控制信息。 In a OFDM-based time division multiple access scenario, the basic unit of the resource is an OFDM symbol. Similarly, if one OFDM symbol corresponds to one resource block, the system can use several subcarriers at a fixed position on one OFDM symbol to carry The resource attribution identifier and/or modulation coding information, so that after receiving the OFDM symbol, the receiving end can obtain the information by demodulating the fixed position subcarrier. Similarly, all user terminals can demodulate this information, and generally use a fixed modulation and coding scheme for these subcarriers. In this way, the system saves special symbol expenses to carry these control information.

同样的，我们可以将这些子载波称之为这个符号 /资源块的控制资源区，而其他可用子载波称为数据资源区。 Similarly, we can refer to these subcarriers as the control resource region of this symbol/resource block, while other available subcarriers are called data resource regions.

另外，如果***给用户终端分配连续的多个 OFDM符号， ***可以选择将每个单独的符号作为资源块并且在每个资源块中的控制资源区承载资源归属标识及 /或调制编码信息，或者***可以将连续的多个符号作为资源块组，选择在资源块组中间例如第一个资源块的控制资源区来承载上述信息及连续符号的数量信息等。 In addition, if the system allocates consecutive multiple OFDM symbols to the user terminal, the system may select each individual symbol as a resource block and carry the resource attribution identifier and/or modulation coding information in the control resource region in each resource block, or The system may use a plurality of consecutive symbols as a resource block group, and select a control resource region in the middle of the resource block group, for example, the first resource block, to carry the information, the number information of consecutive symbols, and the like.

例如，考虑到实际的应用场景，在同轴电缆（Coaxial Cable) 点到多点网络的应用场景中，由于信道噪声环境都比较稳定，在为用户终端分配资源或告知调制编码等级信息以后，不需要每个资源块都承载这些信息，因此调制编码等级信息对于同一个用户终端不需要频繁通知，这样，并不需要每个传输周期或传输时隙都需要占用控制资源区的资源，从而可以空出来传输其它资源属性信息或业务数据。 For example, considering the actual application scenario, in a Coaxial Cable point-to-multipoint network application scenario, since the channel noise environment is relatively stable, after allocating resources to the user terminal or informing the modulation coding level information, Each resource block is required to carry the information. Therefore, the modulation coding level information does not need to be frequently notified to the same user terminal. Therefore, it is not required that each transmission period or transmission time slot needs to occupy resources of the control resource area, so that it can be empty. Come out to transfer other resource attribute information or business data.

与上述的方法类似，本发明的实施例还提供了相应的装置。 Similar to the method described above, embodiments of the present invention also provide corresponding means.

图 6示出了根据本发明一个实施例的基于 OFDM的多址***中的装置。该装置设置于发送端，例如可以设置在网络侧。 Figure 6 illustrates an apparatus in an OFDM based multiple access system in accordance with one embodiment of the present invention. The device is arranged at the transmitting end, for example, it can be set on the network side.

如图 6所示，所述装置包括映射模块 610、资源控制模块 630和发送模块 650、资源控制模块 650。 As shown in FIG. 6, the apparatus includes a mapping module 610, a resource control module 630, a sending module 650, and a resource control module 650.

资源控制模块 630，用于确定特定支持用户终端业务数据传输的一个或多个资源块，生成控制指令，该控制指令指示将包含资源归属标识的控制信息映射到所述一个或多个资源块的特定资源块。信号生成模块 610，用于响应所述控制指令，将包含资源归属标识的控制信息映射到所述特定资源块内的控制资源区，并在所述一个或多个资源块内的数据资源区映射所述特定用户终端的业务数据，输出所述一个或多个资源块内通过多载波调制的多载波信号。 The resource control module 630 is configured to determine one or more resource blocks that specifically support the user terminal service data transmission, and generate a control instruction, where the control instruction indicates that the control information including the resource home identifier is mapped to the one or more resource blocks. Specific resource blocks. The signal generating module 610 is configured to: in response to the control instruction, map control information including a resource attribution identifier to a control resource region in the specific resource block, and map the data resource region in the one or more resource blocks The service data of the specific user terminal outputs a multi-carrier signal modulated by multi-carrier in the one or more resource blocks.

发送模块 650耦合到映射模块 610，用于将映射模块 610输出的多载波信号发送出去。 The transmitting module 650 is coupled to the mapping module 610 for transmitting the multi-carrier signal output by the mapping module 610.

资源控制模块 630还可以生成控制业务数据映射的控制指令，映射模块 610根据控制业务数据映射的控制指令将该特定用户终端的业务数据映射到所述一个或多个资源块的数据资源区。为描述方便，将控制控制信息映射的指令称为第一控制指令，将控制业务数据映射的控制指令称为第二控制指令。 The resource control module 630 can also generate control instructions for controlling the traffic data mapping, and the mapping module 610 maps the service data of the particular user terminal to the data resource region of the one or more resource blocks according to a control instruction that controls the traffic data mapping. For convenience of description, an instruction that controls control information mapping is referred to as a first control instruction, and a control instruction that controls service data mapping is referred to as a second control instruction.

资源控制模块 630根据资源块中控制资源区的资源分配信息产生第一控制指令。资源控制模块 630也可以根据数据资源区的资源分配信息产生第二控制指令。 The resource control module 630 generates a first control instruction according to the resource allocation information of the control resource region in the resource block. The resource control module 630 can also generate a second control instruction based on the resource allocation information of the data resource area.

映射模块 610包括数据编码和调制模块 612、控制信息编码和调制模块 614和复用模块 616。 The mapping module 610 includes a data encoding and modulation module 612, a control information encoding and modulation module 614, and a multiplexing module 616.

数据编码和调制模块 612，用于对业务数据（如图中数据流）进行编码和调制，输出所述一个或多个资源块的数据资源区内通过多个子载波调制的多载波信号。每一个用户终端可以对应一个或多个数据编码和调制模块 612。采用相同调制和编码方案的用户终端可以时分复用的方式共享同一个数据编码和调制模块 612。 The data encoding and modulation module 612 is configured to encode and modulate the service data (such as the data stream in the figure), and output the multi-carrier signal modulated by the plurality of sub-carriers in the data resource region of the one or more resource blocks. Each user terminal can correspond to one or more data encoding and modulation modules 612. User terminals employing the same modulation and coding scheme can share the same data encoding and modulation module 612 in a time division multiplexed manner.

控制信息编码和调制模块 614，用于得到包含资源归属标识的控制信息，将控制信息进行调制和编码，输出所述特定资源块的控制资源区内通过多个子载波调制的多载波信号； The control information encoding and modulating module 614 is configured to obtain control information including a resource attribution identifier, modulate and encode the control information, and output a multi-carrier signal modulated by the plurality of subcarriers in the control resource region of the specific resource block;

复用模块 616，用于将数据编码和调制模块 612和控制信息编码和调制模块 614 输出的子载波复用。 The multiplexing module 616 is configured to multiplex the data encoding and modulation module 612 and the subcarriers output by the control information encoding and modulation module 614.

其中，控制信息映射到包含控制资源区和数据资源区的资源块。 The control information is mapped to a resource block including a control resource area and a data resource area.

在一个实施例中，资源控制模块 630可以将第一控制指令和第二控制指令输出给复用模块 616，复用模块根据第一控制指令和第二控制指令选择性输出控制信息编码和调制模块 614和数据编码和调制模块 612的输出信号。其中，控制信息编码和调制模块 614可以从资源控制模块 630获得控制信息，如资源归属标识，或者资源归属标识以及资源分配信息的组合信息，当然，还可以包括资源属性信息。资源归属标识、资源分配信息和资源属性信息的具体内容参见上文各实施例的内容，不再赘述。数据编码和调制模块 612可以从资源控制模块 630获得编码和 /或调制方案以更新待发送业务数据的编码和 /或调制方案，并利用更新后的编码和调制方案对业务数据进行编码和调制处理。 In an embodiment, the resource control module 630 may output the first control instruction and the second control instruction to the multiplexing module 616, and the multiplexing module selectively outputs the control information encoding and modulation module according to the first control instruction and the second control instruction. 614 and an output signal of the data encoding and modulation module 612. The control information encoding and modulating module 614 may obtain the control information, such as the resource attribution identifier, or the combination information of the resource attribution identifier and the resource allocation information, from the resource control module 630. Of course, the resource attribute information may also be included. For details of the resource attribution identifier, the resource allocation information, and the resource attribute information, refer to the contents of the foregoing embodiments, and details are not described herein. Data encoding and modulation module 612 can obtain an encoding and/or modulation scheme from resource control module 630 to update the to-be-sent The coding and/or modulation scheme of the traffic data, and the service data is encoded and modulated using the updated coding and modulation scheme.

在另一个实施例中，资源控制模块 630也可以将第一控制指令和第二控制指令分别输出给控制信息编码和调制模块 614和数据编码和调制模块 612，控制信息编码和调制模块 614和数据编码和调制模块 612分别根据第一控制指令和第二控制指令输出信号给复用模块 616。 In another embodiment, the resource control module 630 can also output the first control instruction and the second control instruction to the control information encoding and modulation module 614 and the data encoding and modulation module 612, the control information encoding and modulation module 614 and the data, respectively. The encoding and modulation module 612 outputs a signal to the multiplexing module 616 according to the first control command and the second control command, respectively.

本发明一个实施例中，信号生成模块 610生成的信号时频域上的信号，发送模块 650可以将频域的信号转换成时域的信号，例如通过快速傅立叶逆变换（Inverse fast Fourier transform, IFFT)、滤波处理、数模转换、模拟信号处理等，输出时域信号。相应的，发送模块 650可以包含 IFFT单元、滤波单元、数模转换单元、模拟电路等分别实现上述功能。这些功能的实现可以参考现有技术，不再赘述。 In an embodiment of the present invention, the signal generated by the signal generating module 610 is a signal in the time-frequency domain, and the transmitting module 650 can convert the signal in the frequency domain into a signal in the time domain, for example, by inverse fast Fourier transform (IFFT). ), filter processing, digital-to-analog conversion, analog signal processing, etc., output time domain signals. Correspondingly, the sending module 650 can include an IFFT unit, a filtering unit, a digital-to-analog conversion unit, an analog circuit, and the like to implement the foregoing functions. The implementation of these functions can refer to the prior art and will not be described again.

图 7示出了根据本发明一个实施例的基于 OFDM的多址***中的的装置 700。该装置 700设置于接收端，例如可以应用于用户终端。 Figure 7 illustrates an apparatus 700 in an OFDM based multiple access system in accordance with one embodiment of the present invention. The device 700 is provided at the receiving end and can be applied, for example, to a user terminal.

如图 7所示，装置 700包括接收模块 710、控制信息检测模块 720、数据提取模块 730和资源控制模块 740。接收模块 710，用于接收通过多个子载波调制的多载波信号，所述多个子载波的多个资源块，所述多个资源块中的特定资源块包括控制资源区和数据资源区。 As shown in FIG. 7, the apparatus 700 includes a receiving module 710, a control information detecting module 720, a data extracting module 730, and a resource control module 740. The receiving module 710 is configured to receive a multi-carrier signal modulated by multiple sub-carriers, where multiple resource blocks of the multiple sub-carriers, and the specific resource blocks of the multiple resource blocks include a control resource region and a data resource region.

控制信息检测模块 720，用于从所述控制资源区的子载波获得包含资源归属标识的控制信息，并将控制信息发送给资源控制模块 740。 The control information detecting module 720 is configured to obtain control information including a resource attribution identifier from the subcarriers of the control resource region, and send the control information to the resource control module 740.

资源控制模块 740，用于根据资源归属标识确定包含资源归属标识的资源块属于特定用户终端，并生成控制指令，该控制指令指示数据提取模块 730接收所述特定资源块的数据区的子载波中的业务数据。 The resource control module 740 is configured to determine, according to the resource attribution identifier, that the resource block that includes the resource attribution identifier belongs to the specific user terminal, and generate a control instruction, where the control instruction instructs the data extraction module 730 to receive the subcarrier in the data area of the specific resource block. Business data.

数据提取模块 730，用于根据资源控制模块 740的指示，从所述特定资源块的数据区对应子载波中获得业务数据。数据提取模块 730可以是数据解调和解码模块。控制信息检测模块 720可以从控制区对应子载波中获得调制和解码方案等级信息，确定解调和解码方案，并指示数据解调和解码模模块采用确定的解调和解码方案获得业务数据。 The data extraction module 730 is configured to obtain service data from the corresponding subcarriers of the data area of the specific resource block according to the indication of the resource control module 740. Data extraction module 730 can be a data demodulation and decoding module. The control information detecting module 720 can obtain modulation and decoding scheme level information from the corresponding subcarriers of the control region, determine a demodulation and decoding scheme, and instruct the data demodulation and decoding module to obtain the service data using the determined demodulation and decoding scheme.

控制信息检测模块 720 从控制资源区进一步获得资源分配信息；资源控制模块 740 根据所述资源归属标识和所述资源分配信息的组合信息确定所述特定用户终端的多个资源块；数据提取模块 730从所述用户终端的多个资源块的数据资源区的子载波获得业务数据。另外，本发明实施例还提供了一种通信***，其包括至少一个上述的局端和至少一个上述的用户终端。 The control information detecting module 720 further obtains resource allocation information from the control resource region; the resource control module 740 determines a plurality of resource blocks of the specific user terminal according to the combination information of the resource home identifier and the resource allocation information; and the data extraction module 730 The service data is obtained from subcarriers of the data resource region of the plurality of resource blocks of the user terminal. In addition, an embodiment of the present invention further provides a communication system including at least one of the foregoing central office and at least one of the foregoing user terminals.

在一个示例中，该通信***可以是无线通信***。图 8示出了根据本发明一个实施例的无线通信***。如图 8所示，所述无线通信***可以包括至少一个基站和至少一个用户设备，其中，所述基站包括根据本发明实施例的可以设置在局端的装置，且所述用户设备包括根据本发明实施例的可以设置在用户终端的的装置。 In one example, the communication system can be a wireless communication system. Figure 8 illustrates a wireless communication system in accordance with one embodiment of the present invention. As shown in FIG. 8, the wireless communication system may include at least one base station and at least one user equipment, where the base station includes a device that may be set at a central office according to an embodiment of the present invention, and the user equipment includes the present invention. An apparatus of an embodiment that can be provided at a user terminal.

在另一个示例中，该通信***可以是有线通信***。图 9示出了根据本发明一个实施例的有线通信***。如图 9所示，所述有线通信***可以包括至少一个头端和至少一个终端，其中，所述头端包括根据本发明实施例的可以设置在局端的装置，所述终端包括根据本发明实施例的可以设置在用户终端的的装置。 In another example, the communication system can be a wired communication system. Figure 9 illustrates a wired communication system in accordance with one embodiment of the present invention. As shown in FIG. 9, the wired communication system may include at least one head end and at least one terminal, wherein the head end includes a device that may be disposed at a central office according to an embodiment of the present invention, and the terminal includes the implementation according to the present invention. An example of a device that can be placed at a user terminal.

此外，通过在资源块的固定位置，即支持业务数据传输的资源块内的控制区，承载资源属性信息，如调制和 /或编码等级信息、下行资源块的功率控制信息等还可以实现动态的 QoS。具体来说，可以通过动态的修改子载波上的调制方式及编码方式来实现不同的 QoS，以实现不同的误码率。因而，对于低时延，低速率要求的业务，如 VoIP数据流，可以使用相对低阶的调制方式和 /或更低的码率，而针对数据或视频业务，则可以使用相对高阶的调制方式和 /或更高的码率。 In addition, dynamic resource information, such as modulation and/or coding level information, power control information of downlink resource blocks, etc., can also be implemented by a fixed location in a resource block, that is, a control area within a resource block supporting service data transmission. QoS. Specifically, different QoS can be implemented by dynamically modifying the modulation mode and coding mode on the subcarriers to achieve different bit error rates. Thus, for low latency, low rate required services, such as VoIP traffic, may use relatively low order modulation and/or lower code rates, while for data or video services, relatively high order modulation may be used. Way and / or higher code rate.

基于 OFDM调制的时分多址方式和 OFDMA方式类似，区别在于在多个用户的子载波相同，不要进行针对不同的用户终端分配频率资源，仅需要分配时域资源。在复用业务数据的时候， OFDMA可以采用多个用户终端并行映射复用，而 OFDM调制的时分多址方式多个用户终端间的业务数据串行复用。 The time division multiple access method based on OFDM modulation is similar to the OFDMA method. The difference is that the subcarriers of multiple users are the same. Do not allocate frequency resources for different user terminals, and only need to allocate time domain resources. When multiplexing service data, OFDMA can use multiple user terminals to perform parallel mapping multiplexing, and OFDM-modulated time division multiple access mode serially multiplexes service data between multiple user terminals.

应当理解，上述"特定"是某个或某类的意思，主要是起区别作用，并非特殊的含义。例如，特定用户终端可以是多址***中多个用户终端中的任意用户终端， "特定"主要是用于区别其它用户终端的作用，也可以用目标用户终端，某个用户终端替代。特定资源块可以是多个资源块中的某个或某类资源块，如包含数据资源区和控制资源区的资源块。用户终端的业务数据是指，在局端到用户终端的方向是指发送给用户终端的业务数据，在用户终端到局端的方向是指用户终端发送的业务数据。 It should be understood that the above "specific" is the meaning of a certain or a certain type, mainly for distinguishing purposes, and is not a special meaning. For example, the specific user terminal may be any user terminal among the plurality of user terminals in the multiple access system, and the "specific" is mainly used to distinguish the roles of other user terminals, and may also be replaced by the target user terminal and a certain user terminal. A specific resource block may be one or a plurality of resource blocks of a plurality of resource blocks, such as resource blocks including a data resource area and a control resource area. The service data of the user terminal refers to the service data sent to the user terminal in the direction from the central office to the user terminal, and the service data sent by the user terminal in the direction from the user terminal to the central office.

本说明书中各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似的部分相互参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。 The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts between the various embodiments may be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

本领域技术人员应该理解，本发明实施例中装置模块的划分为功能划分，实际具体结构可以为上述功能模块的拆分或合并。本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。 It should be understood by those skilled in the art that the division of the device module in the embodiment of the present invention is functional division, and the actual The body structure can be split or merged of the above functional modules. A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。权利要求的内容记载的方案也是本发明实施例的保护范围。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。 The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. The solution described in the claims is also the scope of protection of the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

权利要求 Rights request

1、一种发送方法，该发送方法应用于基于正交频分复用的多址***，其特征在于， A transmission method applied to a multiple access system based on orthogonal frequency division multiplexing, characterized in that

确定支持特定用户终端的业务数据传输的一个或多个资源块，所述一个或多个资源块的特定资源块包含控制资源区和数据资源区，每一个资源块包括数据资源区； Determining one or more resource blocks supporting service data transmission of a specific user terminal, the specific resource block of the one or more resource blocks including a control resource area and a data resource area, each resource block including a data resource area;

将特定用户终端的业务数据和资源归属标识映射到所述一个或多个资源块以生成通过多个子载波调制的多载波信号，其中，所述资源归属标识被映射到所述控制资源区；发送所述多载波信号。 Mapping service data and resource attribution identifiers of a specific user terminal to the one or more resource blocks to generate a multi-carrier signal modulated by a plurality of sub-carriers, wherein the resource attribution identifier is mapped to the control resource region; The multi-carrier signal.

2、根据权利要求 1所述的发送方法，其特征在于，所述一个或多个资源块的每一个资源块包括控制资源区，所述资源归属标识被映射到每一个资源块内的控制资源区。 2. The transmitting method according to claim 1, wherein each resource block of the one or more resource blocks includes a control resource region, and the resource home identifier is mapped to a control resource in each resource block. Area.

3、根据权利要求 1所述的发送方法，其特征在于，所述特定资源块和至少一个其它资源块形成资源块组，所述控制资源区还映射有资源分配信息，所述资源归属标识和所述资源分配信息的组合信息表示所述资源块组内所有资源块和所述特定用户终端的归属关系。 The transmission method according to claim 1, wherein the specific resource block and the at least one other resource block form a resource block group, and the control resource region further maps resource allocation information, the resource attribution identifier and The combination information of the resource allocation information indicates a belonging relationship of all resource blocks in the resource block group and the specific user terminal.

4、根据权利要求 1至 3任一项所述的发送方法，其特征在于，所述资源归属标识为所述特定用户终端的物理标识和 /或逻辑标识。 The transmitting method according to any one of claims 1 to 3, wherein the resource attribution identifier is a physical identifier and/or a logical identifier of the specific user terminal.

5、根据权利要求 1至 4任一项所述的发送方法，其特征在于，所述控制资源区映射有资源属性信息，所述资源属信息包括：调制和编码等级信息，和 /或所述一个或多个资源块的发送功率控制信息。 The transmission method according to any one of claims 1 to 4, wherein the control resource region is mapped with resource attribute information, and the resource belonging information includes: modulation and coding level information, and/or the Transmit power control information for one or more resource blocks.

6、一种接收方法，该接收方法应用于基于正交频分复用的多址***，其特征在于， 6. A receiving method applied to a multiple access system based on orthogonal frequency division multiplexing, characterized in that

接收通过多个子载波调制的多载波信号，所述多个子载波对应多个资源块，所述多个资源块中的特定资源块包含控制资源区和数据资源区； Receiving a multi-carrier signal modulated by a plurality of sub-carriers, where the plurality of sub-carriers correspond to a plurality of resource blocks, where a specific one of the plurality of resource blocks includes a control resource area and a data resource area;

检测所述特定资源块内控制资源区对应的子载波中获得资源归属标识；根据资源归属标识确定所述特定资源块属于特定用户终端；从所述特定资源块的数据资源区对应的子载波中获得业务数据。 Detecting, in the sub-carrier corresponding to the control resource area in the specific resource block, obtaining a resource attribution identifier; determining, according to the resource attribution identifier, that the specific resource block belongs to a specific user terminal; The service data is obtained from subcarriers corresponding to the data resource region of the specific resource block.

7、根据权利要求 6所述的接收方法，其特征在于，每一个资源块包括控制资源区，每一个资源块内的控制资源区映射有资源归属标识。 The receiving method according to claim 6, wherein each resource block includes a control resource area, and the control resource area in each resource block is mapped with a resource belonging identifier.

8、根据权利要求 6所述的发送方法，其特征在于，所述特定资源块和至少一个其它资源块形成资源块组，所述控制资源区还映射有资源分配信息； The transmitting method according to claim 6, wherein the specific resource block and the at least one other resource block form a resource block group, and the control resource region further reflects resource allocation information;

根据所述资源归属标识和所述资源分配信息的组合信息确定所述特定用户终端的资源块组内的所有资源块，并从所述资源块组的所有资源块的数据资源区对应的子载波获得业务数据。 Determining, according to the combination information of the resource attribution identifier and the resource allocation information, all resource blocks in the resource block group of the specific user terminal, and subcarriers corresponding to data resource regions of all resource blocks of the resource block group Get business data.

9、根据权利要求 6至 8任一项所述的发送方法，其特征在于，所述资源归属标识为所述特定用户终端的物理标识和 /或逻辑标识。 The transmitting method according to any one of claims 6 to 8, wherein the resource attribution identifier is a physical identifier and/or a logical identifier of the specific user terminal.

10、根据权利要求 6至 9任一项所述的发送方法，其特征在于，所述控制资源区映射有资源属性信息，所述资源属信息包括：调制和编码等级信息和 /或所述一个或多个资源块的发送功率控制信息。 The transmission method according to any one of claims 6 to 9, wherein the control resource region is mapped with resource attribute information, and the resource belonging information includes: modulation and coding level information and/or the one Transmit power control information of multiple resource blocks.

11、一种装置，该装置应用于基于正交频分复用的多址***，其特征在于，资源控制模块（630)，用于确定支持特定用户终端业务数据传输的一个或多个资源块，生成控制指令，该控制指令指示将包含资源归属标识的控制信息映射到所述一个或多个资源块的特定资源块； 11. A device for applying to a multiple access system based on orthogonal frequency division multiplexing, characterized in that a resource control module (630) is configured to determine one or more resource blocks supporting data transmission of a specific user terminal service. Generating a control instruction, the control instruction indicating mapping control information including a resource attribution identifier to a specific resource block of the one or more resource blocks;

信号生成模块（610)，用于响应所述控制指令，将包含资源归属标识的控制信息映射到所述特定资源块内的控制资源区，并在所述一个或多个资源块内的数据资源区映射所述特定用户终端的业务数据，输出所述至少一个或多个资源块内通过多载波调制的多载波信号； a signal generating module (610), configured to, in response to the control instruction, mapping control information including a resource attribution identifier to a control resource region within the specific resource block, and data resources in the one or more resource blocks The area maps the service data of the specific user terminal, and outputs a multi-carrier signal modulated by the multi-carrier in the at least one or more resource blocks;

发送模块（650)，用于将映射模块（610) 输出的多载波信号发送出去。 The sending module (650) is configured to send the multi-carrier signal output by the mapping module (610).

12、根据权利要求 11所述的装置，其特征在于，所述控制信息还包括资源分配信息，所述资源归属标识和所述资源分配信息的组合信息用于标识资源块组与所述用户终端的归属关系，所述资源块组包含所述特定资源块和至少一个其它资源块。 The device according to claim 11, wherein the control information further includes resource allocation information, and the combination information of the resource home identifier and the resource allocation information is used to identify a resource block group and the user terminal. A affiliation relationship, the resource block group containing the specific resource block and at least one other resource block.

13、根据权利要求 11所述的装置，其特征在于，所述资源归属标识为用户终端的物理标识和 /或逻辑标识。 The device according to claim 11, wherein the resource attribution identifier is a user The physical and/or logical identity of the terminal.

14、根据权利要求 11至 13任一项所述的装置，其特征在于，信号生成模块 ( 610) 包括： 14. The apparatus according to any one of claims 11 to 13, wherein the signal generating module (610) comprises:

数据编码和调制模块（612)，用于对业务数据进行编码和调制，输出所述一个或多个资源块的数据资源区内通过多个子载波调制的多载波信号； a data encoding and modulation module (612), configured to encode and modulate the service data, and output a multi-carrier signal modulated by the plurality of sub-carriers in a data resource region of the one or more resource blocks;

控制信息编码和调制模块（614)，用于得到包含资源归属标识的控制信息，将控制信息进行调制和编码，输出映射到所述特定资源块的控制资源区内通过多个子载波调制的多载波信号； And a control information coding and modulation module (614), configured to obtain control information including a resource attribution identifier, modulate and encode the control information, and output a multi-carrier modulated by multiple subcarriers in a control resource region of the specific resource block. Signal

复用模块（616)，用于将数据编码和调制模块（612) 和控制信息编码和调制模块（614) 输出的子载波复用。 The multiplexing module (616) is configured to multiplex the data encoding and modulation module (612) and the subcarriers output by the control information encoding and modulation module (614).

15、一种装置，应用于基于正交频分复用的多址***的接收端，其特征在于，该装置包括： 15. A device for use in a receiving end of a multiple access system based on orthogonal frequency division multiplexing, characterized in that the device comprises:

接收模块（710)，用于接收通过多个子载波调制的多载波信号，所述多个子载波对应多个资源块，所述多个资源块中的特定资源块包括控制资源区和数据资源区； a receiving module (710), configured to receive a multi-carrier signal modulated by multiple sub-carriers, where the multiple sub-carriers correspond to multiple resource blocks, where a specific resource block of the multiple resource blocks includes a control resource area and a data resource area;

控制信息检测模块（720)，用于从所述控制资源区的子载波中获得包含资源归属标识的控制信息，并将控制信息发送给资源控制模块（740); The control information detecting module (720) is configured to obtain control information including a resource attribution identifier from the subcarriers of the control resource region, and send the control information to the resource control module (740);

资源控制模块（740)，用于根据资源归属标识确定所述特定资源块属于特定用户终端，并生成控制指令，该控制指令指示数据提取模块（730) 接收所述特定资源块的数据区对应的子载波中的业务数据； a resource control module (740), configured to determine, according to the resource attribution identifier, that the specific resource block belongs to a specific user terminal, and generate a control instruction, where the control instruction instructs the data extraction module (730) to receive the data area corresponding to the specific resource block. Service data in subcarriers;

数据提取模块 730，用于根据资源控制模块 740的指示，从所述特定资源块的数据区对应子载波中获得业务数据。 The data extraction module 730 is configured to obtain service data from the corresponding subcarriers of the data area of the specific resource block according to the indication of the resource control module 740.

16、根据权利要求 15所述的装置，其特征在于，控制信息检测模块（720) 从所述控制资源区进一步获得资源分配信息；资源控制模块（740) 根据所述资源归属标识和所述资源分配信息的组合信息确定所述特定用户终端的多个资源块； 16. The apparatus according to claim 15, wherein the control information detecting module (720) further obtains resource allocation information from the control resource region; the resource control module (740) according to the resource attribution identifier and the resource Combining information of the allocation information determines a plurality of resource blocks of the specific user terminal;

数据提取模块 730从所述用户终端的多个资源块的数据资源区对应的子载波获得业务数据。 The data extraction module 730 obtains service data from subcarriers corresponding to data resource regions of the plurality of resource blocks of the user terminal.

17、根据权利要求 15或 16所述的装置，其特征在于，所述资源归属标识为所述特定用户终端的物理标识和 /或逻辑标识。 The device according to claim 15 or 16, wherein the resource attribution identifier is a physical identifier and/or a logical identifier of the specific user terminal.

18、根据权利要求 15至 17任一项所述的装置，其特征在于，所述控制信息还包括资源属性信息，所述资源属性信息包括：调制和编码等级信息和 /或资源块发送功率控制信息。 The device according to any one of claims 15 to 17, wherein the control information further includes resource attribute information, where the resource attribute information comprises: modulation and coding level information and/or resource block transmission power control. information.

19、一种基于正交频分复用的多址***，包括设置于局端的如权利要求根据权利要求 11至 14任一项的装置，和如权利要求 15到 18任一项的装置。 A multiple access system based on orthogonal frequency division multiplexing, comprising a device according to any one of claims 11 to 14 as set forth in the office, and a device according to any one of claims 15 to 18.