CN101304524A - Method and device for transmitting and receiving mobile multimedia broadcast - Google Patents

Method and device for transmitting and receiving mobile multimedia broadcast Download PDF

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CN101304524A
CN101304524A CN 200810114724 CN200810114724A CN101304524A CN 101304524 A CN101304524 A CN 101304524A CN 200810114724 CN200810114724 CN 200810114724 CN 200810114724 A CN200810114724 A CN 200810114724A CN 101304524 A CN101304524 A CN 101304524A
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channel
frame
control
data
module
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CN100539690C (en
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健 宋
彭克武
杨知行
潘长勇
军 王
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清华大学
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Abstract

The invention discloses a method and a device for sending and receiving mobile multimedia broadcasting. The sending method includes: a sending terminal receives one-path or multi-path multimedia broadcasting service data of a user; first processing is carried out to generate data frames; the control information of the user is received; second processing is carried out to generate control frames; time slots are composed by time-slot synchronizing channels and the data frames; service channels are composed by the time slots; control channels are composed by the control frames; second frames by are composed second frame synchronizing channels, the service channels and the control channels; post treatment of baseband and post emission of frequency conversion are carried out for the second frames. The receiving method includes: the second frame synchronizing channels are received to obtain synchronizing second frames; the service channels and the control channels are separated from the second frames; the time slots are separated from the service channels; the control frame are separated from the control channels; the data frames are separated from the time slots; third processing is carried out for the data frames; fourth processing is carried out on the control frames; the one-path or multi-path multimedia broadcasting service data are obtained after the third processing of the data frames is finished.

Description

移动多媒体广播发送与接收的方法和装置 The mobile multimedia broadcast transmission and reception method and apparatus

技术领域 FIELD

本发明涉及数字电视信息传输技术领域,特别涉及一种移动多媒体广播发送与接收的方法和装置。 Technical Field The present invention relates to the transmission of digital television information, and more particularly to a method and apparatus for a mobile multimedia broadcast transmission and reception.

背景技术 Background technique

移动多媒体广播是通过卫星和地面无线广播方式,供移动便携的手持终端如手机、PDA (Personal Digital Assistant.个人数字助理)、MP3、 MP4、数码相机、 笔记本电脑等接收设备,随时随地接收广播电视节目和信息服务等业务的系统, 它是移动通信和数字电视广播技术融合的产物。 Mobile multimedia broadcasting via satellite and terrestrial radio broadcasting for mobile and portable handheld terminals such as mobile phones, PDA (Personal Digital Assistant. Personal digital assistants), MP3, MP4, digital cameras, notebook computers and other receiving devices to receive radio and television anytime, anywhere service programs and information services system, which is a mobile communication technology and digital television broadcasting fusion product. 作为一种新的信息服务方式和媒体形态,它给信息产业带来了新的发展机遇,并对现行的产业政策和管制方式提出新的变革要求。 As a new way of information services and media forms, it gives the information industry has brought new opportunities for development, and the existing industrial policy and regulatory changes in the way proposed new requirements. 移动多媒体广播主要需要解决的技术问题有: Mobile multimedia broadcasting major technical problems to be solved are:

(1) 移动便携接收和低功耗 (1) low-power mobile and portable reception

无论是中低速运行的汽车、慢速运动的行人,还是时速几百千米的高速列车; Whether it is in the low speed of the car, slow-moving pedestrians, or hundreds of kilometers per hour high-speed train;

不管是高楼密布的城市、开阔空旷的郊区,还是山地隧道涵洞,都要求能接收到清晰稳定的多媒体数据。 Whether the tall dense urban, suburban wide open, or mountain tunnels and culverts, are required to receive a clear and stable multimedia data. 同时,还必须不断降低接收机的复杂度和功耗,以满足手持终端等设备的小型化需要。 At the same time, we must also continue to reduce complexity and power consumption of the receiver, in order to meet miniaturization needs handheld terminal device and the like.

(2) 节约频谱 (2) conserve spectrum

最大限度地提高频谱利用率,节省了信号带宽;同时支持单频网(SFN , Single Frequency Network),实现了各发射台在同一时刻使用同一频率发射同一套节目, 发射功率低,电磁辐射小,而且可以不断扩大覆盖区域,提高频谱利用率。 Maximize spectrum efficiency, saving the signal bandwidth; support a single frequency network (SFN, Single Frequency Network), to achieve the same frequency for each transmitting station transmitting the same program at the same time a low transmitting power, low electromagnetic radiation, and we can continue to expand coverage, improve the spectrum efficiency.

(3) 网络设计灵活性. (3) network design flexibility.

实现在国家、地区间漫游时,不用更换设备就能完成网络和系统的及时切换, 适合不同国家和地区的各种传输和信道带宽,减少设计成本,利用同一设计推出产品,缩短了产品上市周期。 When implemented in national, regional roaming, without having to replace equipment can be done in a timely manner to switch networks and systems, and various transmission channel bandwidth for different countries and regions, reduce design costs, using the same design introduced products, shorten product launch cycle .

目前业内比较成熟的移动多媒体广播标准主要有以下4种: Currently the industry is more mature mobile multimedia broadcasting standards mainly in the following four kinds:

(l)欧洲DVB-H (L) The European DVB-H

早在几年前,欧洲数字视频广播(DVB, Digital Video Broadcast)组织就探讨了DVB-UMTS(Universal Mobile Telecommunications System,通用移动通信系统)集成的可能性,前期的欧洲DVB-T (Terrestrial Digital Multimedia Broadcasting,地面 Some years ago, the European Digital Video Broadcasting (DVB, Digital Video Broadcast) organizations discussed the DVB-UMTS (Universal Mobile Telecommunications System, Universal Mobile Telecommunications System) integration possibilities, pre-European DVB-T (Terrestrial Digital Multimedia Broadcasting, ground

数字多媒体广播)标准为了适应不同的要求,设置了可变的参数,这些参数适应范围窄,主要还是针对室内外固定接收,抗脉冲干扰能力不强,并且没有考虑省电功能,对于便携的手持设备并不适用。 Digital Multimedia Broadcasting) standard in order to meet different requirements, set variable parameters, these parameters has a narrow range, mainly for indoor and outdoor fixed reception, anti-pulse interference is not strong, and do not consider the power saving function, for portable hand-held the device does not apply.

因此,欧洲DVB组织制定了后期的针对手持设备的DVB-H( Digital Video Broadcasting-Handheld,数字视频广播-手持式接收)标准。 Therefore, the European DVB organizations to develop a late DVB-H (Digital Video Broadcasting-Handheld, Digital Video Broadcasting - Handheld receiving) standard for handheld devices. 2004年,DVB指导委员会定义和通过了DVB-H规范,目前正按计划在一些城市进行系统验证测试, 比如德国柏林、赫尔辛基和美国匹兹堡等。 In 2004, DVB Steering Committee and defined by the DVB-H standards, currently is on schedule system verification testing in some cities, such as Berlin, Helsinki and Pittsburgh and so on.

(2) 日本、韩国的S-DMB和T-DMB (2) in Japan, South Korea S-DMB and T-DMB

闩本和韩国使用基于数字音频广播(DAB, Digital Audio Broadcasting)技术标准的T-DMB (Terrestrial Digital Multimedia Television Broadcasting,地面数字多媒体电视广播)标准,还有基于卫星的S-DMB(Satellite Digital Multimedia Broadcasting,卫星数字多媒体电视广播)手机电视标准,目前正在韩国进行商业运营。 Latch and Korea-based digital audio broadcasting (DAB, Digital Audio Broadcasting) technical standard T-DMB (Terrestrial Digital Multimedia Television Broadcasting, terrestrial digital multimedia broadcasting) standard, as well as satellite-based S-DMB (Satellite Digital Multimedia Broadcasting , satellite digital multimedia broadcasting) mobile TV standard currently under South Korean commercial operations.

(3) 美国高通公司的MediaFLO • (3) Qualcomm's MediaFLO •

美国高通推出了基于OFDM(Orthogonal Frequency Division Multiplexing,正 Qualcomm launched based on OFDM (Orthogonal Frequency Division Multiplexing, positive

交频分复用)技术的专有的MediaFLO方案,在北美开展手机电视运营网络试验。 Orthogonal Frequency Division Multiplexing) scheme proprietary MediaFLO technology, mobile TV operators to carry out the test network in North America.

(4) 基于3G技术的手机电视 (4) based on 3G technology mobile TV

改进和提高现有3G移动通信系统。 Improve and enhance existing 3G mobile communication systems. 3GPP (3rd Generation Partnership Project, 第三代合作伙伴计划)组织早就认识到了广播和多播的重要性,并为此付出了努力,提出了MBMS(Multimedia Broadcast/Multicast Service,多媒体广播/多播业务)。 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) organization has long recognized the importance of broadcast and multicast, and paid the efforts made MBMS (Multimedia Broadcast / Multicast Service, Multimedia Broadcast / Multicast Service ). MBMS包括广播和多播两个模式,广播模式接近于数字电视业务,而多播模式专注和定位于群业务。 MBMS including broadcast and multicast two modes, digital TV broadcast mode close to the business, and multicast mode focused and targeted at business group. 中国移动、中国联通已经在GSM(Global System for Mobile Communications,全球移动通讯系统)、CDMA(Code Division Multiple Access、码分多址)网络上作了相关试验和运营,由于手机电视信号需要大量的数据传输带宽,现在还不能成为大众消费的技术手段和运营业务。 China Mobile, China Unicom has been in the GSM (Global System for Mobile Communications, Global System for Mobile Communications), CDMA operators and the relevant tests made on (Code Division Multiple Access, CDMA) network, because the mobile TV signal requires a large amount of data transmission bandwidth, it can not become a mass consumer of technology and operations.

以上国际移动多媒体广播标准在解决移动多媒体广播所面临的问题时都存在着不同层次的不足之处,性能有待进一步提高:DVB-H是继承于DVB-T(固定或便携接收系统)的,在此基础上针对移动环境优化的空间非常有限,同时DVB-H不能为接收机提供足够的节电机制,还牺牲了一些其它性能指标,如切换时间增大到5秒。 More international mobile multimedia broadcasting standard in solving the problem of mobile multimedia broadcasting faces are there deficiencies at different levels of performance should be further improved: DVB-H is the successor to the DVB-T (fixed or portable reception system), and in based on the very limited space for the mobile environment optimized, while DVB-H does not provide sufficient power saving mechanism for the receiver, but also the expense of some other performance indicators, such as the switching time is increased to 5 seconds. T-DMB频谱利用率低,不能提供足够的信息吞吐量以满足多路高质量的多媒体服务,同时T-DMB也没有为接收机提供足够节电措施。 T-DMB spectrum utilization is low, it does not provide sufficient information to satisfy the throughput of multiple high-quality multimedia services, while T-DMB did not provide enough energy-saving measures for the receiver. MediaFLO是由高通独立提出的系统,不具兼容性,目前主要针对700MHz频点设计,推广范围有限。 Qualcomm MediaFLO is a system of independent proposed non-compatibility, mainly for the 700MHz frequency design, limited outreach. 3G标准的手机电视MBMS标准的出台还要等待一段时间,而且手机电视会占用大量的数据传输带宽。 The introduction of MBMS mobile TV standard 3G standards have to wait for some time, and mobile TV will take a lot of data transfer bandwidth.

发明内容 SUMMARY

为了能够在移动环境中有效地发送与接收多媒体广播业务数据,本发明实施例提供了一种移动多媒体广播发送与接收的方法和装置。 In order to efficiently transmit and receive multimedia broadcast service data in a mobile environment, embodiments of the present invention provide a method and apparatus for a mobile multimedia broadcast transmission and reception. 所述技术方案如下: The technical solutions are as follows:

一方面,本发明实施例提供了一种移动多媒体广播发送的方法,所述方法包 In one aspect, embodiments provide a method of a mobile multimedia broadcast transmission according to the present invention, said method

括: include:

发送端接收用户的一路或多路多媒体广播业务数据; Sending user terminal receives broadcast one or more channels of multimedia service data;

对所述业务数据进行第一处理生成数据帧,所述第一处理包括第一信道编码和第一信道调制; The service data processing for generating a first data frame, the first process includes a first channel coding and modulating a first channel;

接收用户的控制信息; Receiving control information of a user;

对所述控制信息进行第二处理生成控制帧,所述第二处理包括第二信道编码和第二信道调制; The control information of the second control frame generating process, the second process comprises a second channel and a second channel coding modulation;

使用时隙同歩信道和至少一个所述数据帧组成时隙,每一路多媒体广播业务数据使用整数个所述时隙; Ho slot using the same channel and at least one of said frames of data slots, each channel multimedia broadcast service data using said integer number of time slots;

使用至少一个所述时隙组成业务信道; Using at least one of said traffic channel time slots;

使用至少一个所述控制帧组成控制信道,所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息; Using at least one of the control frame comprises a control channel, the control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one;

使用秒帧同步信道、所述控制信道和所述业务信道依次连续排列组成秒帧, 所述秒帧同步信道用于所述秒帧的同步,以所述秒帧为基本单位来分配整个信道,所述秒帧的长度精确为1秒钟; Frame synchronization using the second channel, the control channel and the traffic channel is composed of successively arranged second frames, the second frame synchronization channel for synchronization of the second frame to the second frame is a basic unit for assigning an entire channel, the exact length of the second frame is 1 second;

对所述秒帧进行基带后处理和正交上变频后发射。 The second frame of a baseband processing and frequency conversion on the quadrature emission.

另一方面,本发明实施例还提供了一种移动多媒体广播接收的方法,所述方法包括: On the other hand, the present invention further provides embodiments of a method for a mobile multimedia broadcast reception, the method comprising:

接收端接收秒帧同步信道,获得同步的秒帧;从所述秒帧中分离出业务信道和控制信道,所述控制信道包含与业务配置、 信道解调和信道解码至少一个有关的信息; Receiving end receives second sync channel frames, the second frame obtaining synchronization; separating the traffic and control channels from the second frame, the control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one;

从所述业务信道进一歩分离出至少一个时隙; 从所述控制信道进一步分离出至少一个控制帧; 从所述时隙进一步分离出至少一个数据帧; From the traffic channel is separated into a ho at least one time slot; the control channel is further separated from the at least one control frame; further separating at least one data frame from the time slot;

对所述数据帧进行第三处理,所述第三处理包括第三信道解调和第三信道解 A third data frame of the process, the third process comprises a third channel and a third channel demodulation Solutions

码; code;

对所述控制帧进行第四处理,所述第四处理包括第四信道解调和第四信道解 Fourth channel and the fourth channel demodulation understanding of the control frame for the fourth process, the fourth process comprises

码; code;

对所述数据帧完成所述第三处理后得到一路或多路多媒体广播业务数据,每一路多媒体广播业务数据使用整数个所述时隙。 After completion of the data frame to obtain the third processing one or more channels of multimedia data broadcast service, multimedia broadcast service data of each path using the integer number of time slots.

另一方面,本发明实施例还提供了一种移动多媒体广播发送的装置,所述装 On the other hand, embodiments of the present invention further provides an apparatus for transmission of mobile multimedia broadcast, said apparatus

置包括: Set includes:

第一接收模块,用于接收用户的一路或多路多媒体广播业务数据; 第一处理模块,用于对所述第一接收模块接收到的业务数据,进行第一处理生成数据帧,所述第一处理包括第一信道编码和第一信道调制; 第二接收模块,用于接收用户的控制信息; A first receiving module, for receiving a user's one or more channels of multimedia broadcast service data; a first processing module, a first receiving module for receiving the service data, processing for generating a first data frame, said first a process comprising a first channel coding and modulating a first channel; and a second receiving module, for receiving control information of a user;

第二处理模块,用于对所述第二接收模块接收到的控制信息,进行第二处理生成控制帧,所述第二处理包括第二信道编码和第二信道调制; A second processing module for controlling the information received by the second receiving module, the second control frame generating process, the second process comprises a second channel and a second channel coding modulation;

时隙组成模块,用于使用时隙同步信道和至少一个所述第一处理模块生成的数据帧组成时隙,每一路多媒体广播业务数据使用整数个所述时隙; Module slots, slot synchronization using the data channel and at least one of said first processing module generates frames of time slots, each channel multimedia broadcast service data using said integer number of time slots;

业务信道组成模块,用于使用所述时隙组成模块组成的时隙,组成业务信道; Traffic channel forming module, for using the module slots of time slot, the composition of the traffic channel;

控制信道组成模块,用于使用至少一个所述第二处理模块生成的控制帧,组成控制信道,所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息; Channel forming module, the second control frame using at least one of said processing module generates, comprises a control channel, the control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one;

秒帧组成模块,用于使用秒帧同步信道、所述控制信道组成模块组成的控制信道和所述业务信道组成模块组成的业务信道,依次连续排列组成秒帧,所述秒帧同步信道用于所述秒帧的同步,以所述秒帧为基本单位来分配整个信道,所述秒帧的长度精确为1秒钟; Second module frames, frame synchronization using second channel, the control channel comprises a control channel and the traffic channel module consisting of a traffic channel modules, consisting of successively arranged second frames, the second frame for the sync channel synchronizing the second frame to the second frame to allocate the entire channel as a basic unit, the exact length of the second frame is 1 second;

发射模块,用于对所述秒帧组成模块组成的秒帧,进行基带后处理和正交上变频后发射。 Transmitting means for said second frame of second frames module performs baseband processing and frequency conversion on the quadrature transmitter.

另一方面,本发明实施例还提供了一种移动多媒体广播接收的装置,所述装置包括- On the other hand, embodiments of the present invention further provides an apparatus for receiving a mobile multimedia broadcasting, the apparatus comprising -

接收模块,用于接收秒帧同歩信道,获得同歩的秒帧; Receiving means for receiving a second frame with channel ho, ho obtained with the second frame;

分离模块,用于从所述接收模块获得的秒帧中,分离出业务信道和控制信道, 所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息; Separation means for receiving from the second frame module obtained, separating traffic channel and a control channel comprising a service configuration, channel demodulation and channel decoding information relating to at least one;

时隙分离模块,用于从所述分离模块分离出的业务信道中,进一歩分离出至 Slot separation module for separating from the traffic channel separation module, was separated into a ho to

少一个时隙; . At least one slot;.

控制帧分离模块,用于从所述时隙分离模块分离出的控制信道中,进一步分离出至少一个控制帧; A control frame separation means for separating the control channel from the separation module slots, further separation at least one control frame;

数据帧分离模块,用于从所述时隙分离模块分离出的时隙中,进一步分离出至少一个数据帧; A data frame separating means for separating the slot from the slot separation module, further separation at least one data frame;

第一处理模块,用于对所述数据帧分离模块分离出的数据帧,进行第三处理, 所述第三处理包括第三信道解调和第三信道解码; A first processing module, a frame separation module for separating the data frame of the data, the third process, the third process includes a third channel demodulation and decoding the third channel;

第二处理模块,用于对所述控制帧分离模块分离出的控制帧,进行第四处理, 所述第四处理包括第四信道解调和第四信道解码; A second processing module, for controlling the frame separated for the control frame separation module, a fourth process, the fourth process includes a fourth channel demodulation and decoding fourth channel;

第三处理模块,用于所述第一处理模块对所述数据帧完成所述第三处理后, 得到一路或多路多媒体广播业务数据,每一路多媒体广播业务数据使用整数个所述时隙。 After the third processing module for processing the first module in the data frame completing the third process, to obtain one or more channels of multimedia data broadcast service, multimedia broadcast service data of each path using the integer number of time slots.

本发明实施例提供的技术方案的有益效果是.- Advantageous effects of the technical solutions provided in the embodiments of the present invention .-

本发明实施例提供的方法和装置能够在特定物理带宽(优选使用2MHz频带和8MHz频带)发送包括高质量的数字音频广播、数字视频广播在内的多媒体节目;可发送1路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/室外的固定、步行和车载移动接收;可根据应用业务的特性和组网环境选择不同的发送模式和参数,并支持多业务的混合模式,达到业务特性与发送模式的匹配,实现了业务运营的灵活性和经济性;并且通过时隙组成业务信道,来发送一路或多路多媒体广播业务数据,当不在业务的时隙内时,可以关闭发送该业务需要的设备,使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 The method and apparatus according to the embodiments of the present invention can include specific physical bandwidth for transmitting high quality digital audio broadcasting, including digital video broadcast multimedia program (preferably using 2MHz and 8MHz band band); road traffic or the channel may be transmitted 1 broadcasting, and supports multi-frequency network SFN types of networking modes, supports indoor / outdoor stationary, pedestrian and vehicle mobile receiver; networking environment according to the characteristics and application services selected different transmission modes and parameters, and supports multiple mixed-mode service, to service features to match the transmission mode, to achieve the flexibility and economy of operations; and by the traffic channel time slots, one or more channels to transmit multimedia broadcast service data, service slot when not within, the transmitting device can close the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power. 附图说明 BRIEF DESCRIPTION

图l是本发明实施例的秒帧结构图; Figure l is a second embodiment of the frame structure of the present invention;

图2是本发明实施例1提供的移动多媒体广播发送的方法流程图; 2 is a flowchart of a method of providing a mobile multimedia broadcast transmission of the present invention;

图3是本发明实施例2提供的移动多媒体广播接收的方法流程图; FIG 3 is a mobile multimedia broadcasting reception method of Example 2 provides a flow chart of the present invention;

图4是本发明实施例3提供的移动多媒体广播发送的方法流程图; FIG 4 is a flowchart of a mobile multimedia broadcast provided in Example 3 of the present invention, the transmission of the embodiment;

图5是本发明实施例1使用的数据帧第一处理过程图; FIG 5 is a data frame of a first process embodiment of FIG Example 1 of the present invention;

图6是本发明实施例1使用的控制帧第二处理过程图; FIG 6 is an embodiment of the present invention, a control frame used in the second process of FIG;

图7是本发明实施例2使用的数据帧第三处理过程图; FIG. 7 is a data frame of FIG third process embodiment of the present invention used in Example 2;

图8是本发明实施例2使用的控制帧第四处理过程图; FIG 8 is an embodiment of the present invention, the second control frame used in a fourth processing procedure of FIG;

图9是2MHz系统信号帧结构1图; FIG 9 is a system 2MHz signal frame structure in FIG 1;

图10是2MHz系统信号帧结构2图; FIG 10 is a 2MHz system signal frame structure of FIG 2;

图11是2MHz系统同步信号使用的PN192结构图; FIG 11 is a configuration diagram of PN192 2MHz system using a synchronization signal;

图12是本发明实施例4提供的移动多媒体广播发送的装置结构图; FIG 12 is an embodiment of the present invention shows the structure of a mobile multimedia broadcast provided by the transmission 4;

图13是本发明实施例5提供的移动多媒体广播接收的装置结构图。 FIG 13 is a configuration diagram of a mobile multimedia broadcast provided in Example 5 of the embodiment of the present invention is received.

具体实施方式 Detailed ways

为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一歩地详细描述。 To make the objectives, technical solutions, and advantages of the present invention will become apparent in conjunction with the following drawings, embodiments of the present invention will be described in detail a ho into place.

本发明实施例以秒帧为单位来划分整'个信道,每个秒帧周期为l秒,与绝对时间同步。 Second embodiment of the present invention to divide the entire frame units' channels, each of the second to l second frame period, is synchronized with absolute time. 如图1所示,每个秒帧包括秒帧同步信道、控制信道和业务信道,秒帧同歩信道用于秒帧的同歩;控制信道是由一系列的C个控制帧组成,其主要功能是承载用于业务配置、信道解调和解码所必需的控制信息,业务信道由一系列的S个时隙组成,每个业务传输时使用整数个时隙,每个时隙由一个时隙训练序列和F个数据帧组成。 As shown, each comprising a second frame a second synchronization channels, control channels and traffic channels, with the second frame for the same channel ho ho second frame; C by a series of control channel is a control frame, whose main is a bearer service configuration function, the control channel demodulation and information necessary to decode the traffic channel consists of a series of time slots S, the transmission slots using an integer for each service, each time slot by one time slot F training sequence and data frames. 上述C、 S和F,根据釆用的传输模式的不同分别取不同的值,比如采用传输模式l时,C取5、 S取20、 F取44;釆用传输模式2时,C 取10、 S取18、 F取88。 The above-described C, S and F, the fetch different values ​​depending on each preclude the use of the transmission mode, such as when using the transmission mode l, C taking 5, S taken 20, F take 44; when preclude the use of the transmission mode 2, C taking 10 , S taken 18, F 88 take.

本发明实施例中,数据帧和控制帧采用相同的信号帧结构,信号帧是系统帧结构的基本单元,每个秒帧中的信号帧,用相同的帧结构。 Embodiments of the present invention, a data frame and the control frame use the same frame structure of the signal, the signal frame is the basic unit of the system frame structure, each frame of the signal in the second frame, the same frame structure. 每个信号帧由帧头和帧体两部分信号组成,帧头作为帧体的保护间隔,同时可以作为训练序列进行信道同歩和信道估计。 Each signal frame by a header and a frame body composed of two partial signals, as a guard interval header frame body, while the same channel as the channel estimate ho, and a training sequence. 对于2MHz系统,帧头长度固定不变,定义为192个符号,一般由已知的伪随机序列(PN序列)构成,采用BPSK(Binary Phase Shift Keying, For 2MHz system, the header length is fixed, is defined as a symbol 192, typically formed of a known pseudo-random sequence (PN sequence), using BPSK (Binary Phase Shift Keying,

二相移相键控)调制。 Two phase-shift keying) modulation.

本发明实施例提供了一种移动多媒体广播发送与接收的方法,具体包括:发 Example embodiments provide a method of transmitting and receiving a mobile multimedia broadcast according to the present invention comprises: Hair

送端接收用户的一路或多路多媒体广播业务数据;对业务数据进行第一处理生成 Sending user terminal receives broadcast one or more channels of multimedia service data; a first traffic data generation process

数据帧,第一处理包括第一信道编码和第一信道调制;接收用户的控制信息;对 Data frame, the first process includes a first channel coding and modulation of the first channel; receiving control information of a user; of

控制信息进行第二处理生成控制帧,第二处理包括第二信道编码和第二信道调 A second control information frame to generate a control process, the second process comprises a second channel and a second channel coding adjustment

制;使用时隙同步信道和数据帧组成时隙;使用时隙组成业务信道;使用控制帧 System; using the time slot and the synchronization channel time slot data frames; using a traffic channel slots; using a control frame

组成控制信道;使用秒帧同步信道、业务信道和控制信道组成秒帧;对秒帧进行 Comprises a control channel; frame synchronization using the second channel, traffic channel and control channel composed of second frames; second frame of

基带后处理和正交上变频后发射;接收,接收秒帧同步信道,获得同步的秒帧; A baseband processing and frequency conversion on the quadrature transmitter; receiving channel receiving a second frame synchronization, the second frame synchronization is obtained;

从秒帧中分离出业务信道和控制信道;从业务信道进一步分离出时隙;从控制信 Separated from the second frame, the traffic and control channels; further separation from the traffic channel slot; from the control signal

道进一步分离出控制帧;从时隙进一歩分离出数据帧;对数据帧进行第三处理, 第三处理包括第三信道解调和第三信道解码;对控制帧进行第四处理,第四处理 A control channel frame further separation; ho from the slot into a separated data frame; third process of the data frame, a third process including a third channel demodulation and decoding the third channel; control frame fourth process, fourth deal with

包括第四信道解调和第四信道解码;对数据帧完成第三处理后得到一路或多路多媒体广播业务数据。 And a fourth channel comprising a fourth channel demodulation decoding; complete data frames to give one or more channels of multimedia broadcast service data after the third treatment. 实施例1 Example 1

本发明实施例提供了一种移动多媒体广播发送的方法,该方法通过使用秒帧同歩信道、业务信道和控制信道组成秒帧,来发送一路或多路多媒体广播业务数 Example embodiments provide a method of mobile multimedia broadcast transmission of the present invention, the method by using the second frame-ho channel, traffic channel and control channel frame composed seconds to transmit one or more channels of multimedia broadcast data service

本发明实施例中,物理带宽采用2MHz频带,当使用2MHz频带时,秒帧中所有的信号(包括各种同步信道和帧头、帧体符号)基带符号率统一为1.536Msps, 即占有的有效信道宽度为1.536MHz。 Embodiments of the present invention, using the physical bandwidth of 2MHz band, when a frequency band of 2MHz, all of the second frame signal (including synchronization channel and the frame header, frame body symbol) is uniform rate baseband symbol 1.536Msps, i.e., possession of a valid channel width of 1.536MHz. 这样每个秒帧共含有1536000个符号,帧体采用TDS-OFDM(Time Domain Synchronous Orthogonal Frequency Division Multiolex,时域同步正交频复分用)多载波调制技术,采用如表1所示的传输模式1,传输模式1的帧体周期为1毫秒(1ms),对应的帧体符号数M二1536。 Such that each second frame containing a total of 1,536,000 symbols, a frame body with TDS-OFDM (Time Domain Synchronous Orthogonal Frequency Division Multiolex, time-domain synchronous with orthogonal frequency division multiplexing) multiple-carrier modulation technique transport mode as shown in Table 1 1, the transmission mode period of the frame body 1 is 1 millisecond (1ms), corresponding to the number of symbols of the frame body M = 1536.

<table>table see original document page 12</column></row> <table>参见图2,本发明实施例提供了一种移动多媒体广播发送的方法,具体包括: 201:发送端接收用户的一路或多路多媒体广播业务数据。 <Table> table see original document page 12 </ column> </ row> <table> Referring to Figure 2, an embodiment provides a method of mobile multimedia broadcast transmission according to the present invention comprises: 201: sending user terminal receives all the way or multi-way multimedia broadcast service data. 202:对业务数据进行第一处理生成数据帧。 202: traffic data to generate a first processed data frame.

同路业务数据使用相同的信道编码方式和信道调制方式,不同业务数据可以根据实际需要灵活配置不同的信道编码方式和信道调制方式,并独立进行时域交织。 Service data go the same way using the same channel coding scheme and a channel modulation scheme, different service data may be flexibly configured according to the actual needs of different channel coding scheme and a channel modulation scheme, and an independent time-domain interleaving.

第一处理过程如图5所示,第一处理包括第一信道编码和第一信道调制,其 As shown in FIG first process, the first process includes a first channel coding and modulation of the first channel, which

第一信道编码采用0.4码率、0.6码率或0.8码率LDPC(Low Density Parity Check , 低密度奇偶校验)编码,同时第一信道调制采用基于n-QAM(Quadrature Amplitude Modulation,正交幅度调制)映射的多载波调制,其中n可以取4、 16、 32或64, n-QAM即4QAM、 16QAM、 32QAM或64QAM。 A first channel coding rate of 0.4, 0.6 or 0.8 rate code rate LDPC (Low Density Parity Check, LDPC) coding, while the first channel is modulated based n-QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation ) multicarrier modulation mapping, where n can take 4, 16, 32 or 64, n-QAM i.e. 4QAM, 16QAM, 32QAM or 64QAM.

第一处理过程具体如下: First process as follows:

首先随机化模块对输入的业务数据使用扰码进行加扰,得到加扰后的比特流,使用的扰码是一个最大长度的二进制伪随机序列,由线性反馈移位寄存器生成;为了进一步降低接收门限,加扰后的比特流接着进行里德一所罗门编码(RS 编码),得到里德一所罗门编码后的比特流;里德一所罗门编码后的比特流接着进行字节交织,得到字节交织后的比特流,字节交织可以减少内码纠错对外部RS 码产生的连续误码影响,它是以字节(8位比特)为单位的块交织,每字节数据按列写入,按行读出,为了适应不同的星座映射和LDPC编码,字节交织宽度可以灵活选择, 一般选择合适的字节交织宽^度,可使得每个业务在一个秒帧中的RS 编码数据正好占用整数个字节交织的存储大小;字节交织后的比特流,接着进行LDPC编码,得到LDPC编码后的比特流,LDPC编码可采用0.4 First randomization module for scrambling the traffic data using the input scrambled to obtain the scrambled bit stream, a binary scrambling code used is a maximum length pseudo-random sequence generated by a linear feedback shift register; To further reduce the receiving threshold, the scrambled bit stream followed by a Reed-Solomon encoder (RS code) to obtain a bit stream of a Reed-Solomon encoder; bitstream Reed-Solomon encoding followed by a byte interleaving, byte interleaving give after the bit stream, the continuous error byte interleaving can reduce the influence of the outer RS ​​code error correction code generated, which is based on bytes (8 bits) is interleaved block unit, each byte of data is written in columns, row readout, in order to adapt to different constellation mapping and LDPC coding, byte interleaving width can be chosen flexibly select the appropriate byte interleaving general width ^ degrees, so each service can be RS encoded data in exactly one second frame occupies integer number of byte interleaving storage size; byte interleaved bit stream, followed by LDPC encoding, the bitstream to obtain LDPC encoding, LDPC encoding can be employed 0.4 码率、0.6码率或0.8码率;为了适应移动多媒体业务,LDPC编码后的比特流接着进行时域交织,得到时域交织后的比特流,不同业务数据的数据帧独立进行时域交织,时域交织器是以星座符号为单位的块交织,按列写入,按行读出,块交织的交织深度和交织宽度,可以根据不同的星座映射和LDPC编码灵活选择, 一般选择合适的交织深度和交织宽度,可使得每个业务在秒帧中传输的符号数是整数个符号交织的存储大小,时域交织以秒帧为单位进行,每个秒帧的第一个数据符号写入符号交织存储区的第1行和第1歹U;时域交织后的比特流,接着进行n-QAM映射, 转化成n-QAM符号流,其中n可以取4、i6、32或64,n-QAM即4QAM、16QAM、32QAM或64QAM;本发明实施例采用的是传输模式1,数据帧帧体为数据长度为1536的n-QAM调制符号,经过映射后,接着使用TDS-OFDM多载波调制技术,将该 Rate, or rate 0.6 0.8 rate; mobile multimedia services in order to adapt, the LDPC encoded bit stream is then interleaved in time domain, time-domain bit streams interleaved, and data of different service data interleaved frame independent time-domain, a time domain symbol constellation interleaver is interleaving block units, written in a column, row is read out, the block interleaver interleaving depth and width interleaving can be flexibly selected according to different LDPC encoding and constellation mapping, interleaving generally select the appropriate interleaving depth and width, so that the symbol can be transmitted for each service in the second frame is an integer number of symbols interleaved storage size, time-domain interleaving in units of second frames, the first frame of data symbols for each second of writing symbols interleaving the first row and the first storage area bad U; time-domain bit streams interleaved, followed by n-QAM mapping, it is converted into n-QAM symbol stream, where n may take 4, i6,32 or 64, n- QAM i.e. 4QAM, 16QAM, 32QAM or 64QAM; embodiments of the present invention is used in transmission mode 1, the data frame of the frame body data length of n-QAM modulation symbols 1536, after mapping, then use the TDS-OFDM multi-carrier modulation technique , the 1536个n-QAM调制符号进行频域交织和FFT变换得到1536个帧体符号;进一步将上述帧体符号和长度为192的帧头符号组合成数据帧,如图8所示, 其组帧结构为:帧头符号连续排列于帧体符号前,帧头符号以及其他同步信号(如秒帧控制信道、时隙同步信道等),均可采用伪随机序列通过循环扩展组成,本发明实施例中使用的帧头符号以及其他同歩信号(如秒帧控制信道、时隙同步信道等),都是由一个7阶长度为127的PN训练序列通过某种组合组成,用户在实际应用中,可以根据需要选用不同的已知序列来替换这些同步信号,本发明实施例中使用的PN训练序列定义为一个7阶长度为127的m序歹U ,可由一个Fibonacci 型线性反馈移位寄存器实现,经"0"到+'l值及"1"到-1值的映射变换为非归零的二进制符号,帧头符号由一个PN192所构成,如图10所示,该PN192是在PN127 序列前 1536 n-QAM modulation symbols interleaved and the frequency-domain transform FFT frame body 1536 symbols; symbol further the frame member and a length of data symbols into a frame header 192, shown in Figure 8, which framing structure as follows: Preamble symbols arranged consecutively in the frame body before the symbols, header symbols and other synchronization signal (e.g., second frame control channel, a synchronization channel time slot, etc.), may be a pseudo-random sequence by the cyclic expansion composition, embodiments of the present invention ho same header symbols and other signals (e.g., second frame control channel, a synchronization channel time slot, etc.), are made a 7-step sequence of length 127 PN training by some combination thereof, in practical applications the user may the need to use different sequences to replace these known synchronization signal used in an embodiment of the present invention is defined as a sequence PN training 7-step sequence of length 127 m bad U, by a Fibonacci-type linear feedback shift register and, via "0" to + 'l and the value "1" to a value of -1 mapping transformation of non-zero binary symbols, header symbols formed by a PN192, 10, before the PN192 PN127 sequence is 充65个符号作为前同步,这65个符号为PN127的循环前缀,帧头符号的平均功率是帧体符号的平均功率的2倍。 As the charge 65 before the synchronization symbols, 65 symbols which is the cyclic prefix PN127, header symbol average power is twice the average power of the frame body symbols.

按照上述方法连续生成44个数据帧。 44 data frames continuously generated as described above.

203:接收用户的控制信息。 203: receiving control information of the user. 204:对控制信息进行第二处理生成控制帧。 204: the control information to generate a second control frame processing.

第二处理过程如图6所示,第二处理包括第二信道编码和第二信道调制,第二信道编码固定采用0.4码率的LDPC编码,第二信道调制采用基于BPSK映射的TDS-OFDM多载波调制,同时控制帧不经过时域交织。 The second process shown in FIG. 6, the second process comprises a second channel and a second channel coding modulation, a second channel coding rate is fixed using 0.4 LDPC encoding, the second multi-channel modulation-based TDS-OFDM BPSK mapping carrier modulation, while controlling the frame does not pass through a time domain interleaving. 采用0.4码率的LDPC 编码和基于BPSK映射的多载波TDS-Oi"DM调制,可以有效防止传输误码,而采用无时间交织的主要目的则是保证控制信息安全快速传输。 LDPC encoding using a code rate of 0.4 and a multi-carrier-based BPSK mapping TDS-Oi "DM modulation, transmission errors can be effectively prevented, while the use of no time interleaving main purpose is to ensure safe and fast transmission of control information.

第二处理过程具体如下: The second process follows:

首先随机化模块对输入的控制信息使用扰码进行加扰,得到加扰后的比特流,使用的扰码是一个最大长度的二进制伪随机序列,由线性反馈移位寄存器生成;加扰后的比特流接着进行LDPC编码,得到LDPC编码后的比特流,进行LDPC编码时,固定使用0.4码率的LDPC编码;LDPC编码后的比特流接着进行BPSK映射,转换成BPSK符号流;因为本发明实施例使用的是传输模式1,所以控制帧帧体为数据长度为1536的BPSK符号,经过映射后,接着使用TDS-OFDM多载波调制技术,将该1536个BPSK符号进行频域交织和FFT变换得到1536个帧体符号;进一歩将上述帧体符号和长度为192的帧头符号组合成控制帧,如图9所示,其组帧结构为:帧头符号连续排列于帧体符号前。 First randomization module using the control information of scrambling code to scramble the input to obtain the scrambled bit stream scrambled using a binary pseudo-random sequence is a maximum length, generated by a linear feedback shift register; scrambled when the bit stream followed by LDPC encoding, the bitstream to obtain LDPC encoding, LDPC encoding, LDPC encoding using the fixed rate of 0.4; LDPC coded bit stream BPSK-mapped and then converted into a stream of BPSK symbols; for the present invention Example 1 using the transmission mode, the control frame for the data length of the frame body BPSK symbols 1536, after mapping, then use the TDS-OFDM multi-carrier modulation, the BPSK symbols 1536 and frequency domain interleaving FFT transform the frame body 1536 symbols; ho into a symbol to the frame member and a length of 192 symbols combined into a header control frame, shown in FIG. 9, which is a framing structure: Preamble symbols arranged consecutively in the frame body before the symbol. 按照上述方法连续生成5个控制帧。 5 control frames continuously generated as described above.

另外,第二信道调制还可以采用基于4QAM映射的TDS-OFDM多载波调制, 具体调制过程同基于BPSK映射的多载波TDS-OFDM调制,此处不再赘述。 The second channel modulation can also be employed 4QAM TDS-OFDM based multi-carrier modulation mapping, with specific modulation process based TDS-OFDM multi-carrier modulation BPSK mapping, not further described herein.

205:使用时隙同歩信道和上述202中生成的数据帧组成时隙。 205: ho using the same time slot and channel data 202 generated in the time slot frames.

时隙是分配业务的基本单元。 The slot is the basic unit of allocated services. 每个时隙由时隙同步信道和F个数据帧两部分信号组成。 Each slot by the slot synchronization channel and the data frame F composed of two partial signals. 每个时隙可以承载67584个符号,其中前67392个符号承载映射后的数据符号,后192个符号保留。 Each slot can carry 67584 symbols, wherein the data symbols prior to symbol 67,392 bearer mapping, retention after 192 symbols. 对于2MHz系统,采用传输模式l,每个时隙包含的的数据帧数F = 44,所以每个时隙需要使用上述202中生成的44个数据帧; 将长度为192个符号的时隙同步信道连寧排列于上述44个数据帧前,组合成时隙。 For 2MHz system, using the L transmission mode, each slot comprising data frames F = 44, so that each slot 202 need generated using the data frame 44; length of slot synchronization symbol 192 Ning channel arrangement connected to the front frame 44 data above, the combination into time slots. 如图11所示,使用的时隙同步信道与帧头符号相同,由一个PN192所构成。 As shown in FIG. 11, the synchronization channel time slot used in the same header symbols, constituted by a PN192.

按照上述方法连续生成20个时隙。 According to the above method of generating a continuous 20 slots.

206:使用上述205中生成的时隙组成业务信道。 206: 205 generated using the above composition traffic channel time slots.

在传输模式1中,秒帧中的业务信道包含的时隙数S^20,把上述205中生成的20个时隙组成业务信道。 In the transmission mode 1, the second traffic channel frame contains the number of slots S ^ 20, 205 in the above-described slots 20 generated traffic channels.

207:使用上述204中生成的控制帧组成控制信道。 207: 204 using control frames generated in the control channel.

在传输模式l中,秒帧中的控制信道包含的的控制帧数C二5,把上述204中生成的5个控制帧组成控制信道。 L In the transmission mode, the second control channel frame comprises a control frame C = 5, the above 5 204 generated control channel frames.

208:使用秒帧同步信道、上述206中生成的业务信道和上述207中生成的控制信道组成秒帧。 208: using the second frame synchronization channel 206 generated in the above-described traffic channel and a control channel generated in the above-described composition 207 sec frame. . .

秒帧的结构为:秒帧同步信道、控制信道和业务信道依次连续排列。 Structure second frame is: second frame synchronization channels, control channels and traffic channels successively arranged. 在传输模式1中,所使用的秒帧控制信道由连续的15个PN192所构成。 In the transmission mode 1, using the second control channel frame constituted by a continuous 15 PN192.

209:对上述208中生成的秒帧进行基带后处理和正交上变频后发射。 209: After the above-described second frame 208 generated baseband transmit processing and frequency conversion on the quadrature.

使用成形滤波对生成的秒帧进行基带后处理生成基带信号,其中成形滤波采用平方根升余弦(SRRC , Square Root Raised Cosine)滤波器进行,该SRRC滤波器的滚降系数a为0.05;基带信号经变频形成射频信号(48.5MHz-3000MHz 频段范围内)。 After using the shaping filter of the second frame to generate the baseband processing to generate a baseband signal, wherein the shaping filter uses a square root raised cosine (SRRC, Square Root Raised Cosine) filter, roll-off factor a of the SRRC filter is 0.05; baseband signal formation of the RF signal frequency (the frequency range 48.5MHz-3000MHz).

本发明实施例所示的方法能够在特定物理带宽(优选使用2MHz频带和8MHz 频带)发送包括高质量的数字音频广播、数字视频广播在内的多媒体节目;可发送1路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/室外的固定、歩行和车载移动接收;可根据应用业务的特性和组网环境选择不同的发送模式和参数,并支持多业务的混合模式,达到业务特性与发送模式的匹配,实现了业务运营的灵活性和经济性;并且通过时隙组成业务信道,来发送一路或多路多媒体广播业务数据,当不在业务的时隙内时,可以关闭发送该业务需要的设备, 使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 The method of the present invention can be illustrated embodiment comprises specific physical bandwidth for transmitting high quality digital audio broadcasting, including digital video broadcast multimedia program (preferably using 2MHz and 8MHz band band) in; the broadcast may send a service or multiple , and supports multi-frequency network SFN types of networking modes, supports indoor / outdoor fixed, and by walk-board mobile reception; according to the characteristics of application services and networking environments choose different transmission modes and parameters, and supports multiservice mixed-mode, to match the characteristics of the transmission mode operations, to achieve the flexibility and economy of operations; and, one or more channels to transmit multimedia broadcast service data through the traffic channel slots, the traffic time slots when not when, the transmission device can turn off the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power.

实施例2 Example 2

本发明实施例还提供了一种移动多媒体广播接收的方法,该方法通过接收秒帧同歩信道,获得同歩的秒帧,经过处理后得到一路或多路多媒体广播业务数据。 Embodiments of the present invention further provides a method of mobile multimedia broadcast receiver, the method by receiving a second channel frame-ho, ho obtained with the second frame, after treatment to give one or more channels of multimedia broadcast service data. 参见图3,本发明实施例提供了一种移动多媒体广播接收的方法,具体包括: 301:接收端接收秒帧同步信道,获得同步的秒帧。 Referring to Figure 3, an embodiment provides a method of mobile multimedia broadcast receiver of the present invention comprises: 301: second receiving end receives a synchronization channel frame, the second frame synchronization is obtained.

302:根据获得的秒帧分离出业务信道和控制信道,其中业务信道至少包括一个时隙,控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息。 302: The second frame obtained by separating the traffic and control channels, wherein the traffic channel comprises at least one time slot comprising control channels and service configuration, channel demodulation and channel decoding at least one related information. 303:从分离出的业务信道进一步分离出至少一个时隙。 303: separating at least one time slot is further separated from the traffic channel. 304:从分离出的控制信道进一步分离出至少一个控制帧。 304: further separation from the at least one control channel frame separated. 305:从分离出的时隙进一步分离出至少一个数据帧。 305: isolating at least one further data frame from slots separated.

306:对分离出的数据帧进行第三处理,该第三处理包括第三信道解调和第三 306: a data frame of the separated third process, the third process includes a third channel demodulation and third

信道解码。 Channel decoding.

307:对分离出的控制帧进行第四处理,该第四处理包括第四信道解调和第 307: The control frame separated fourth process, the fourth process includes a fourth channel demodulation and

四信道解码。 Four channel decoding. 控制帧经过第四处理后得到控制信息,控制信息中包含与业务配置、 信道解调和信道解码中至少一个有关的杨息。 After the fourth control frame processing to obtain the control information, the control information comprises a service configuration, channel demodulation and channel decoding at least one of information related to Yang. 利用控制信息中的业务配置信息, Service configuration information using the control information,

可以控制时隙接收,有选择地接收所需的时隙;利用控制信息中的信道解调和信道解码信息,可以控制数据帧的第三处理,指示第三处理进行正确的第三信道解调和第三信道解码。 Reception control slot can selectively receive a desired time slot; the control channel demodulation and channel decoding the information, the third process may be controlled data frame, a third indicating correct processing of the third channel demodulator and the third channel decoding.

308:对数据帧完成信道第三处理后得到一路或多路多媒体广播业务数据。 308: After completion of the third data frame processing channel to obtain one or more channels of multimedia broadcast service data.

本发明实施例所示的方法能够在特定物理带宽(优选使用2MHz频带和8MHz频带)接收包括高质量的数字音频广播、数字视频广播在内的多媒体节目; 可接收1路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/ 室外的固定、歩行和车载移动接收;可根据应用业务的特性和组网环境选择不同的接收模式和参数,并支持多业务的混合模式,达到业务特性与接收模式的匹配, 实现了业务运营的灵活性和经济性;并且通过接收由时隙组成的业务信道,来接收一路或多路多媒体广播业务数据,当术在业务的时隙内时,可以关闭接收该业务需要的设备,使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 The method of the present invention as shown embodiment can be a particular physical bandwidth multimedia program (preferably using 2MHz and 8MHz band band) receiving a high-quality digital audio broadcasting, including digital video broadcasting; can receive a broadcast service or multiple , and supports multi-frequency network SFN types of networking modes, supports indoor / outdoor fixed, and by walk-board mobile reception; select different receiving modes and parameters according to the characteristics of application services and networking environments, and support for multi-service mixed-mode, to achieve the service features to match the receive mode, to achieve the flexibility and economy of operations; and, one or more branches to receive multimedia broadcast service data by receiving a traffic channel consists of time slots, when in service operation within the slot, the receiving device may turn off the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power. 实施例3 Example 3

另外,本发明实施例还提供了一种移动多媒体广播发送的方法,与实施例1 所示的方法的区别在于,本发明实施例中,帧体采用单载波调制技术,采用如表2所示的传输模式2,传输模式2的帧体周期为500微秒(500us),对应的帧体符号数M二768。 Further, embodiments of the present invention further provides a method for a mobile multimedia broadcast transmission, the difference method shown in Example 1 in that the embodiment of the present invention, the frame body single-carrier modulation technique, as shown in Table 2 using 2 transmission mode, the transmission mode 2 of the frame body 500 microsecond period (500us), corresponding to the number of symbols of the frame body M = 768.

传输模式 帧体周期 每秒帧的控制帧数C 每秒帧的时隙数s- 每时隙的数据帧数F 秒帧同步信道长度(符号) 时隙同步信道长度(符号) Transmission mode control frames per second frame member C period slot number of frames per second of data frames s- slot number of frames per second frame synchronization signal F channel length (symbol) length of the synchronization channel time slot (symbol)

传输模式2 500us 10 18 88 12x192 192 Transmission mode 2 500us 10 18 88 12x192 192

表2 Table 2

参见图4,本发明实施例还提供了一种移动多媒体广播发送的方法,具体包 Referring to Figure 4, an embodiment of the present invention further provides a method of mobile multimedia broadcast transmission, in particular packet

括: include:

401:发送端接收用户的一路或多路多媒体广播业务数据。 401: sending user terminal receives one or more channels of multimedia broadcast service data. 402:对业务数据进行第一处理生成数据帧。 402: traffic data to generate a first processed data frame.

如图10所示,数据帧帧体为数据长度为768的n-QAM调制符号。 10, the data frame of the frame body data length n-QAM modulation symbols 768. 第一处理过程如图7所示,采用单载波调制,将768个n-QAM调制符号直 First process shown in Figure 7, single-carrier modulation, the n-QAM 768 modulation symbols linear

接作为帧体符号;而不是象实施例1步骤202中那样,将1536个n-QAM调制符 A frame member connected symbols; instead as in step 1 in Example 202 above embodiment, the 1536 n-QAM modulation symbols

号进行频域交织和FFT变换再得到帧体符号,其它方面同实施例1中步骤202, No. FFT frequency domain interleaving and re-conversion symbols to obtain the frame body, in other respects the procedure of Example 1 with the embodiments 202,

此处不再赘述。 Not repeat them here.

按照上述方法连续生成88个数据帧。 88 data frames continuously generated as described above.

403:接收用户的控制信息。 403: receiving control information of the user.

404:对控制信息进行第二处理生成控制帧。 404: the control information to generate a second control frame processing.

如图10所示,控制帧帧体为数据长度为768的BPSK符号; 10, the control frame of the frame body data length 768 BPSK symbols;

第二处理过程如图8所示,采用单载波调制技术,将768个BPSK符号直接 The second process shown in Figure 8, single carrier modulation techniques, direct the BPSK symbols 768

作为帧体符号,而不是象实施例1步骤204中那样,将1536个BPSK符号进行频域交织和FFT变换得到1536个帧体符号,其它方面同实施例1中步骤204, 此处不再赘述。 Symbol as a frame body, and not, as in Example 1, step as in embodiment 204, 1536 BPSK symbols can be frequency-interleaved FFT transform and the frame body 1536 symbols, in other respects the procedure of Example 1 with the embodiment 204 will not be repeated here .

按照上述方法连续生成10个控制帧。 Continuously generated control frame 10 as described above.

405:使用时隙同歩信道和上述402 —生成的88个数据帧组成时隙。 405: using the same time slot and said channel ho 402-- generating data frames of 88 time slots. 组成时隙的具体过程同实施例1歩骤402,此处不再赘述。 DETAILED slot composition process in Example 1 ho step 402, is not repeated here. 按照上述方法连续生成18个时隙。 According to the above method of generating a continuous 18 slots. 406:使用上述405中生成的18个时隙组成业务信道。 406: 405 generated using the slots 18 traffic channels. 407:使用上述404中生成的10个控制帧组成控制信道。 407: 404 using the generated control frame 10 comprises a control channel. 408:使用秒帧同歩信道、上述406中生成的业务信道和上述407中生成的控制信道组成秒帧。 408: second frame using the same channel ho above 406 generated traffic channel and a control channel generated in the above-described composition 407 sec frame.

409:对上述408中生成的秒帧进行基带后处理和正交上变频后发射。 409: After the above-described second frame 408 is generated in a baseband processing and frequency conversion on the quadrature emission. 本发明实施例所示的方法能够在特定物理带宽(优选使用2MHz频带和8MHz 频带)发送包括高质量的数字音频广播、数字视频广播在内的多媒体节目;可发送1路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/室外的固定、步行和车载移动接收;可根据应用业务的特性和组网环境选择不同的发送模式和参数,并支持多业务的混合模式,达到业务特性与发送模式的匹配,实现了业务运营的灵活性和经济性;并且通过时隙组成业务信道,来发送一路或多路多媒体广播业务数据,当不在业务的时隙内时,可以关闭发送该业务需要的设备, 使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 The method of the present invention can be illustrated embodiment comprises specific physical bandwidth for transmitting high quality digital audio broadcasting, including digital video broadcast multimedia program (preferably using 2MHz and 8MHz band band) in; the broadcast may send a service or multiple , and supports multi-frequency network SFN types of networking modes, supports indoor / outdoor stationary, pedestrian and vehicle mobile receiver; networking environment according to the characteristics and application services selected different transmission modes and parameters, and supports multiservice mixed-mode, to match the characteristics of the transmission mode operations, to achieve the flexibility and economy of operations; and, one or more channels to transmit multimedia broadcast service data through the traffic channel slots, the traffic time slots when not when, the transmission device can turn off the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power. 另外,本发明实施例,第一处理中将768个n-QAM调制符号直接作为帧体符号,第二处理过程中将768个BPSK符号直接作为帧体符号,使得处理过程更加简单。 Further, embodiments of the present invention, in a first process 768 directly n-QAM modulation symbol as a symbol frame member, in the second process 768 symbol BPSK symbols directly as the frame member, so that the process easier.

实施例4 . Example 4.

另外,参见图12,本发明实施例还提供了一种移动多媒体广播发送的装置, 具体包括: Further, referring to Figure 12, an embodiment of the present invention further provides an apparatus for a mobile multimedia broadcast transmission, comprises:

第一接收模块121,用于接收用户的一路或多路多媒体广播业务数据; A first receiving module 121, one or more branches for multimedia broadcast service data received user;

第一处理模块122,用于对第一接收模块121接收到的业务数据,进行第一处理生成数据帧,第一处理包括第一信道编码和第一信道调制; 第二接收模块123,用于接收用户的控制信息; A first processing module 122, traffic data for a first receiving module 121 to the received data frame to generate a first process, the first process includes a first channel coding and modulating a first channel; the second receiving module 123, for receiving control information of a user;

第二处理模块124,用于对第二接收模块123接收到的控制信息,进行第二处理生成控制帧,第二处理包括第二信道编码和第二信道调制; The second processing module 124, a control information receiving module 123 receives the second, and the second control frame generating process, the second process comprises a second channel and a second channel coding modulation;

时隙组成模块125,用于使用时隙同步信道和至少一个第一处理模块122生 125 module slots, synchronization channel slots for use and at least one first processing module 122 Students

成的数据帧,组成时隙,每一路多媒体广播业务数据使用整数个时隙; Into the data frame, composed of slots, each channel multimedia broadcast service data by an integer number of time slots;

业务信道组成模块126,用于使用至少一个时隙组成模块125组成的时隙, Traffic channel forming module 126 for time slots using at least one module slot 125 consisting of,

组成业务信道; Composition traffic channel;

控制信道组成模块127,用于使用至少一个第二处理模块124生成的控制帧, 组成控制信道,控制信道包含与业务配置、信道解调和信道解码至少一个有关的"f曰息; Channel forming module 127, using the at least one second processing module 124 generates a control frame, comprises a control channel, and traffic channel configuration comprising, channel demodulation and channel decoding at least a relevant "f said information;

秒帧组成模块128,用于使用秒帧同步信道、控制信道组成模块127组成的控制信道和业务信道组成模块126组成的业务信道,依次连续排列组成秒帧,秒帧同步信道用于秒帧的同歩,以秒帧为基本单位来分配整个信道,秒帧的长度精确为1秒钟; Second frames module 128, using second frame synchronization signal, a control channel component modules control channels and traffic channels consisting of 127 building blocks traffic channel consisting of 126, successively arranged compositions second frame, second frame sync channel for the second frame, with ho seconds assigning an entire channel frames as the basic unit, the precise length of the second frame is 1 second;

发射模块129,用于对秒帧组成模块128组成的秒帧,进行基带后处理和正交上变频后发射。 Transmitting module 129, a second frame of the second module 128 composed of frames, after baseband processing and frequency conversion on the quadrature emission. ,

本发明实施例所示的装置能够在特定物理带宽(优选使用2MHz频带和8MHz 频带)发送包括高质量的数字音频广播、数字视频广播在内的多媒体节目;可发送l路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/室外的固定、步行和车载移动接收;可根据应用业务的特性和组网环境选择不同的发送模式和参数,并支持多业务的混合模式,达到业务特性与发送模式的匹配,实现了业务运营的灵活性和经济性;并且通过时隙组成业务信道,来发送一路或多路多媒体广播业务数据,当不在业务的时隙内时,可以关闭发送该业务需要的设备, 使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 Apparatus illustrated embodiment of the present invention can include specific physical bandwidth for transmitting high quality digital audio broadcasting, including digital video broadcast multimedia program (preferably using 2MHz and 8MHz band band) in; l transmittable broadcast traffic or multi , and supports multi-frequency network SFN types of networking modes, supports indoor / outdoor stationary, pedestrian and vehicle mobile receiver; networking environment according to the characteristics and application services selected different transmission modes and parameters, and supports multiservice mixed-mode, to match the characteristics of the transmission mode operations, to achieve the flexibility and economy of operations; and, one or more channels to transmit multimedia broadcast service data through the traffic channel slots, the traffic time slots when not when, the transmission device can turn off the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power.

实施例5 - Example 5 -

另外,参见图13,本发明实施例还提供了一种移动多媒体广播接收的装置, 具体包括: Further, referring to Figure 13, an embodiment of the present invention further provides an apparatus for a mobile multimedia broadcast reception, comprises:

接收模块131,用于接收秒帧同步信道,获得同步的秒帧; A receiving module 131 for receiving a second frame synchronization channel, the second frame synchronization is obtained;

分离模块132,用于从接收模块131获得的秒帧中,分离出业务信道和控制信 Separation module 132, a frame 131 obtained from the second receiving module, separating the traffic channel and the control channel

道; Road;

时隙分离模块133,用于从分离模块132分离出的业务信道中,进一步分离出至少一个时隙; Separation module slot 133 for separating from the traffic channel separation module 132, further separation at least one time slot;

控制帧分离模块134,用于从分离模块132分离出的控制信道中,进一步分 A control frame separation module 134, a control channel separated from the separation module 132 is further divided

离出至少一个控制帧; From at least one control frame;

数据帧分离模块135,用于从时隙分离模块133分离出的时隙中,进一步分离出至少一个数据帧; A data frame separation module 135, for timeslots separated from separation module 133, further separation at least one data frame;

第一处理模块136,用于对数据帧分离模块135分离出的数据帧,进行第三处理,第三处理包括第三信道解调和第一信道解码; A first processing module 136, a data module 135 separated by the frame separation data frame, a third process, a third process including a first third channel demodulation and channel decoding;

第二处理模块137,用于对控制帧分离模块134分离出的控制帧,进行第四处理,第四处理包括第四信道解调和第四信道解码; The second processing module 137 for controlling frame separated control frame separation module 134, a fourth process, fourth process includes a fourth channel demodulation and decoding fourth channel;

第三处理模块138,用于第一处理模块136对数据帧完成第三处理后,得到所述一路或多路多媒体广播业务数据。 After the third processing module 138 or 136 of the first data processing means for processing a third frame is completed, one or more ways to obtain the multimedia broadcast service data.

本发明实施例所示的装置能够在特定物理带宽(优选使用2MHz频带和8MHz频带)接收包括高质量的数字音频广播、数字视频广播在内的多媒体节目; 可接收1路或多路业务的广播,支持多频网和单频网两种组网模式,支持室内/ 室外的固定、步行和车载移动接收;可裉据应用业务的特性和组网环境选择不同的接收模式和参数,并支持多业务的混合模式,达到业务特性与接收模式的匹配, 实现了业务运营的灵活性和经济性;并且通过接收时隙组成的业务信道,来接收一路或多路多媒体广播业务数据,当不在业务的时隙内时,可以关闭接收该业务需要的设备,使得该方法不用占用大量的数据传输带宽,能提供足够的信息吞吐量并且可以节约电量。 Apparatus illustrated embodiment of the present invention is capable of specific physical bandwidth (preferably using 2MHz and 8MHz band band) in the digital audio broadcasting receiver comprises a high-quality, including digital video broadcast multimedia programs; may receive a broadcast service or multiple , and supports multi-frequency network SFN types of networking modes support indoor / outdoor fixed, pedestrian and vehicular mobile reception; feature can be applied according to Ken's business and networking environment to select a different reception mode and parameters, and supports multiple mixed-mode service, service features match reaches the reception mode, to achieve the flexibility and economy of operations; and the traffic channel received through the slots to receive one or more branches multimedia broadcast service data, when not in service when a time slot, the receiving device may turn off the service required, making the process not take up a lot of data transfer bandwidth, provide sufficient information throughput and may save power.

以上实施例提供的技术方案中的全部或部分内容可以通过软件编程实现,其软件程序存储在可读取的存储介质中,存储介质例如:计算机中的硬盘、光盘或软盘。 All or part of the contents in the technical solutions provided may be implemented through software programming, in the storage medium may be readable, for example, a storage medium storing software programs: a computer hard disk, optical disk or floppy disk.

以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精祌和原则之内,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 foregoing is only preferred embodiments of the present invention, not intended to limit the present invention, any modification within the principles of the fine and Chong of the present invention, made, equivalent substitutions, improvements, etc., should be included in the present invention. within the scope of protection.

Claims (11)

1.一种移动多媒体广播发送的方法,其特征在于,所述方法包括: 发送端接收用户的一路或多路多媒体广播业务数据; 对所述业务数据进行第一处理生成数据帧,所述第一处理包括第一信道编码和第一信道调制; 接收用户的控制信息; 对所述控制信息进行第二处理生成控制帧,所述第二处理包括第二信道编码和第二信道调制; 使用时隙同步信道和至少一个所述数据帧组成时隙,每一路多媒体广播业务数据使用整数个所述时隙; 使用至少一个所述时隙组成业务信道; 使用至少一个所述控制帧组成控制信道,所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息; 使用秒帧同步信道、所述控制信道和所述业务信道依次连续排列组成秒帧,所述秒帧同步信道用于所述秒帧的同步,以所述秒帧为基本单位来分配整个信道,所述秒帧的 1. A method for transmitting a mobile multimedia broadcast, wherein, said method comprising: sending user terminal receives one or more channels of multimedia data broadcasting service; the service data processing for generating a first data frame, said first a process comprising a first channel coding and modulation of the first channel; receiving control information of a user; the second process control information to generate a control frame, said second process comprises a second channel and a second channel coding modulation; use slot synchronization channel and at least one of said frames of data slots, each channel multimedia broadcast service data using said integer number of time slots; at least one of said time slots using a traffic channel; using at least one of said control channel frames, the control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one; frame synchronization using the second channel, the control channel and the traffic channel is composed of successively arranged second frames, the second sync channel frame with to synchronize said second frame to said second frame is a basic unit for assigning an entire channel, the second frame 长度精确为1秒钟; 对所述秒帧进行基带后处理和正交上变频后发射。 A length of precisely one second; the second frame after baseband processing and frequency conversion on the quadrature emission.
2. 根据权利要求1所述的移动多媒体广播发送的方法,其特征在于,所述第一信道编码的具体过程为:采用0.4码率、0.6码率或0.8码率的LDPC编码对输入的业务数据进行编码, 得到所述LDPC编码后的比特流; ' 所述第一信道调制的具体过程为:对所述LDPC编码后的比特流进行n-QAM映射,得到n-QAM调制符号,其中n可以取4、 16、 32或64;使用单载波调制技术或多载波调制技术,将所述n-QAM调制符号进行频域交织和FFT变换得到帧体符号;将所述帧体符号和帧头符号组合成所述数据帧。 The mobile multimedia broadcast transmission method according to claim 1, wherein the specific process of the first channel coding is: the code rate of 0.4, the LDPC coding rate 0.6 or 0.8 of the service rate of the input data is encoded to obtain a bitstream encoded LDPC; 'specifically the process of the first channel is modulated: bit streams for the LDPC encoding n-QAM mapping, to obtain n-QAM modulation symbols, where n you can take 4, 16, 32, or 64; the single-carrier modulation technique using multi-carrier modulation technique, the n-QAM modulation symbols interleaved and the frequency-domain transform FFT symbols body frame; the frame header and a frame body symbol symbols into the data frame.
3. 根据权利要求1所述的移动多媒体广播发送的方法,其特征在于,所述第二信道编码的具体过程为:采用0.4码率的LDPC编码对输入的控制信息进行编码,得到所述LDPC编码后的比特流;所述第二信道调制的具体过程为:_对所述LDPC编码后的比特流进行BPSK映射或4QAM映射,得到BPSK调制符号或4QAM调制符号;使用单载波调制技术或多载波调制技术,将所述BPSK调制符号或4QAM调制符号进行频域交织和FFT变换得到帧体符号;将所述帧体符号和帧头符号组合成所述控制帧。 The mobile multimedia broadcast transmission method according to claim 1, wherein the specific process of the second channel to channel coding: the rate of 0.4 LDPC coding control information input encoding, to obtain the LDPC encoded bit stream; specific process of the second channel modulation is: _ the bit streams BPSK-mapping LDPC coded or 4QAM map of BPSK modulation symbols or modulation symbol 4QAM; using a single carrier modulation technique or carrier modulation techniques, the BPSK modulation symbol or 4QAM modulation symbols interleaved and the frequency-domain transform FFT symbol frame body; the body frame header symbols into symbols and the control frame.
4. 根据权利要求1或2所述的移动多媒体广播发送的方法,其特征在于, 所述第一处理在进行所述第一信道编码之前还包括:对输入的业务数据使用扰码进行加扰,得到加扰后的比特流; 所述加扰后的比特流接着进行里德」所罗门编码,得到所述里德一所罗门编码后的比特流;所述里德一所罗门编码后的比特流接着进行字节交织,得到字节交织后的比特流。 The mobile multimedia broadcast transmitting method of claim 1 or claim 2, characterized in that, prior to performing the first process of the first channel coding further comprising: scrambling the traffic data using the inputted scramble to give the scrambled bit stream; the bit stream is then scrambled Reed "Solomon encoding to obtain the encoded bit stream a Reed-Solomon; bitstream after the Reed-Solomon encoding followed by byte interleaved bit stream to obtain byte interleaving.
5. 根据权利要求1或2所述的移动多媒体广播发送的方法,其特征在于, 所述第一处理在进行所述第一信道编码之后,进行所述第一信道调制之前还包括:对所述LDPC编码后的比特流进行时域交织,得到时域交织后的比特流。 The mobile multimedia broadcast transmitting method of claim 1 or claim 2, wherein, after performing the first process of the first channel coding, before performing the first channel modulator further comprising: the time-domain interleaving said encoded bit stream LDPC, to obtain the time-domain bit streams interleaved.
6. 根据权利要求1或2所述的移动多媒体广播发送的方法,其特征在于, 所述第二处理在进行所述第二信道编码之前还包括:对输入的控制信息使用扰码进行加扰,得到加扰后的比特流。 The mobile multimedia broadcast transmitting method of claim 1 or claim 2, characterized in that, prior to performing the second process of the second channel coding further comprises: scrambling the control information using the scrambling code input , the obtained bit stream scrambled.
7. 根据权利要求1所述的移动多媒体广播发送的方法,其特征在于,所述数据帧和所述控制帧采用相同的信号帧结构,由帧头和帧体两部分组成。 The mobile multimedia broadcast transmission method according to claim 1, wherein said data frame and the control frame using the same signal frame structure, a two-part frame header and body composition.
8. 根据权利要求1或2或3所述的移动多媒体广播发送的方法,其特征在于,所述时隙同步信道、所述秒帧同步信道和所述帧头符号均采用伪随机序列通过循环扩展组成,所述伪随机序列的平均功率是所述帧体符号的平均功率的2倍。 The mobile multimedia broadcast transmission method of claim 1 or 2 or as claimed in claim 3, wherein the synchronization channel time slot, the second frame synchronization channel and the header symbols are pseudo-random sequence by cyclically expanded composition, said pseudo-random sequence is the average power of the average power of the frame body 2 symbol times.
9. 一种移动多媒体广播接收的方法,其特征在于,所述方法包括: 接收端接收秒帧同步信道,获得同步的秒帧;从所述秒帧中分离出业务信道和控制信道,所述控制信道包含与业务配置、 信道解调和信道解码至少一个有关的信息;从所述业务信道进一步分离出至少一个时隙;从所述控制信道进一步分离出至少一个控制帧;从所述时隙进一步分离出至少一个数据帧;对所述数据帧进行第三处理,所述第三处理包括第三信道解调和第三信道解码;对所述控制帧进行第四处理,所述缚四处理包括第四信道解调和第四信道解码;对所述数据帧完成所述第三处理后得到一路或多路多媒体广播业务数据,每一路多媒体广播业务数据使用整数个所述时隙。 9. A method for multimedia broadcast received by the mobile, characterized in that, the method comprising: receiving a second terminal receiving a synchronization channel frame, the second frame synchronization is obtained; separating the traffic and control channels from the second frame, the service configuration comprises a control channel, channel demodulation and channel decoding information relating to at least one; further separating at least one time slot from the traffic channel; further separation from the at least one control frame of the control channel; from the slot further separating at least one frame of data; said data frame to a third process, the third process includes a third channel demodulation and decoding the third channel; the fourth control frame processing, the processing tied four fourth channel comprising a fourth channel decoding and demodulation; to give one or more channels of multimedia broadcast service data of the data frame after completing the third process, the multimedia broadcast service data in each channel using the integer number of time slots.
10. —种移动多媒体广播发送的装置,其特征在于,所述装置包括: 第一接收模块,用于接收用户的一路或多路多媒体广播业务数据; 第一处理模块,用于对所述第一接收模块接收到的业务数据,进行第一处理生成数据帧,所述第一处理包括第一信道编码和第一信道调制; 第二接收模块,用于接收用户的控制信息;第二处理模块,用于对所述第二接收模块接收到的控制信息,进行第二处理生成控制帧,所述第二处理包括第二信道编码和第二信道调制;时隙组成模块,用于使用时隙同步信道和至少一个所述第一处理模块生成的数据帧组成时隙,每一路多媒体广播业务数据使用整数个所述时隙;业务信道组成模块,用于使用至少一个所述时隙组成模块组成的时隙,组成业务信道;控制信道组成模块,用于使用至少一个所述第二处理模块生成的控制帧, 10. - kind of mobile multimedia broadcast transmission apparatus, wherein, said means comprising: a first receiving module, for receiving a user's one or more channels of multimedia broadcast service data; a first processing module, for the first a receiving module receives the service data, processing for generating a first data frame, the first process includes a first channel coding and modulating a first channel; the second processing module; a second receiving module, for receiving control information of a user , the second control information received by the receiving module, the second control frame generating process, the second process comprises a second channel and a second channel coding modulation; module slots, time slot for use synchronization channel and at least one of said first data processing module generates time slot frames, each channel multimedia broadcast service data using said integer number of time slots; traffic channels composed of modules, at least one of said time slots using the composition module time slot, the composition of the traffic channel; channel forming module, using at least one of the second control frame generated by the processing module, 组成控制信道,所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息;秒帧组成模块,用于使用秒帧同歩信道、所述控制信道组成模块组成的控制信道和所述业务信道组成模块组成的业务信道依次连续排列组成秒帧,所述秒帧同歩信道用于所述秒帧的同歩,以所述秒帧为基本单位来分配整个信道,所述秒帧的长度精确为l秒钟;发射模块,用于对所述秒帧组成模块组成的秒帧,进行基带后处理和正交上变频后发射。 Comprises a control channel, the control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one; second module frames, frame-ho using second channel, the control channel and the control channel module consisting of the traffic channel module consisting of a traffic channel frames successively arranged second composition, the second frame with the same ho ho of the channel for the second frame to the second frame to allocate the entire channel as a basic unit, the second exact length of the second frame is l; transmitting means for said second frame of second frames module performs baseband processing and frequency conversion on the quadrature transmitter.
11. 一种移动多媒体广播接收的装置,其特征在于,所述装置包括: 接收模块,用于接收秒帧同步信道,获得同步的秒帧;分离模块,用于从所述接收模块获得的秒帧中,分离出业务信道和控制信道, 所述控制信道包含与业务配置、信道解调和信道解码至少一个有关的信息;时隙分离模块,用于从所述分离模块分离出的业务信道中,进一步分离出至少一个时隙;控制帧分离模块,用于从所述时隙分离模块分离出的控制信道中,进一步分离出至少一个控制帧;数据帧分离模块,用于从所述时隙分离模块分离出的时隙中,进一步分离出至少一个数据帧;第一处理模块,用于对所述数据帧分离模块分离出的数据帧,进行第三处理, 所述第三处理包括第三信道解调和第三信道解码;第二处理模块,用于对所述控制帧分离模块分离出的控制帧,进行第四处理 11. An apparatus for receiving a mobile multimedia broadcast, wherein, said apparatus comprising: a receiving module, configured to receive a second synchronization channel frame, the second frame synchronization is obtained; separating means for obtaining from said second receiving module frame, and separating the traffic channel a control channel comprises a service configuration, channel demodulation and channel decoding information relating to at least one; timeslot separation module for separating from the traffic channel of the separation module , further separation at least one time slot; control frame separation means for separating the control channel from the separation module slots, at least one further separation control frame; data frame separation means for the time slot from slots separated in separation module, separating at least a further data frame; a first processing module, for separating said data frame to data frame separation module performs a third process, the third process comprises a third a third channel demodulation and channel decoding; a second processing module, for controlling the frame separated for the control frame separation module, a fourth process , 所述第四处理包括第四信道解调和第四信道解码;第三处理模块,用于所述第一处理模块对所述数据帧完成所述第三处理后, 得到一路或多路多媒体广播业务数据,每一路多媒体广播业务数据使用整数个所述时隙。 The fourth process includes a fourth channel demodulation and decoding fourth channel; after the third processing module, the processing module for the first frame of the data is completed to the third process, to obtain one or more channels of multimedia broadcast service data, multimedia broadcast service data of each path using the integer number of time slots.
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