METHOD OF TRANSMITTING CYCLIC PREFIX LENGTH INFORMATION
    91.
    发明申请
    METHOD OF TRANSMITTING CYCLIC PREFIX LENGTH INFORMATION 有权
    传输循环长度信息的方法

    公开(公告)号:US20100284339A1

    公开(公告)日:2010-11-11

    申请号:US12812574

    申请日:2008-12-30

    IPC分类号: H04W80/00

    CPC分类号: H04L27/2607

    摘要: A method of transmitting cyclic prefix length information when wireless access systems having different cyclic prefix lengths coexist is disclosed. The method of transmitting cyclic prefix length information comprises including the cyclic prefix length information in a preamble; and transmitting the preamble to a receiving end, whereby a transmitter can notify the receiving end of a current cyclic prefix length. Also, in a specific interval where a super frame header is defined, a single cyclic prefix length is used in a legacy support mode and a legacy disable mode, and cyclic prefix length information of other data or control channel is included in the super frame header and then transmitted to the receiving end. If different CP lengths are used in a legacy support mode of an evolved system, it is possible to solve a problem in detecting a control channel or a data channel, which may occur as the CP lengths are not distinguished from each other after preamble detection.

    摘要翻译: 公开了当具有不同的循环前缀长度的无线接入系统共存时发送循环前缀长度信息的方法。 发送循环前缀长度信息的方法包括在前同步码中包括循环前缀长度信息; 以及将前导码发送到接收端,由此发射机可以向接收端通知当前的循环前缀长度。 此外,在定义了超帧报头的特定间隔中,在传统支持模式和遗留禁用模式中使用单个循环前缀长度,并且其他数据或控制信道的循环前缀长度信息被包括在超帧报头中 然后发送到接收端。 如果在演进系统的传统支持模式中使用不同的CP长度,则可以解决检测控制信道或数据信道时的问题,这可能由于在前导码检测之后CP长度彼此不区分而发生。

    METHOD OF MULTIPLEXING MULTIPLE ACCESS REGION
    92.
    发明申请
    METHOD OF MULTIPLEXING MULTIPLE ACCESS REGION 失效
    多重访问区域的复用方法

    公开(公告)号:US20100272055A1

    公开(公告)日:2010-10-28

    申请号:US12810302

    申请日:2008-12-18

    IPC分类号: H04W72/04

    摘要: A method for multiplexing one or more multiple access regions is disclosed. The method for multiplexing one or more multiple access regions in a wireless access system comprises multiplexing the one or more multiple access regions so that a first base station and a second base station among a plurality of base stations which use one or more multiple access schemes together under a multi-cell environment use a single multiple access scheme in a predetermined resource region allocated to each of the first base station and the second base station; and transmitting multiplexing information obtained from the multiplexing the one or more multiple access regions to a mobile station included in a cell region of the plurality of base stations. As a user uses SC-FDMA scheme and OFDMA scheme together, it is possible to obtain a single carrier effect of the SC-FDMA system and flexibility of the OFDMA system on a time axis and a frequency axis.

    摘要翻译: 公开了一种用于复用一个或多个多个接入区域的方法。 用于在无线接入系统中复用一个或多个多个接入区域的方法包括多路复用一个或多个多个接入区域,使得在使用一个或多个多个接入方案的多个基站中的第一基站和第二基站 在多小区环境下,在分配给第一基站和第二基站中的每一个的预定资源区域中使用单个多址方案; 以及将从所述一个或多个多个接入区域复用获得的多路复用信息发送到包括在所述多个基站的小区区域中的移动站。 当用户一起使用SC-FDMA方案和OFDMA方案时,可以在时间轴和频率轴上获得SC-FDMA系统的单载波效应和OFDMA系统的灵活性。

    METHOD FOR PACKET RETRANSMISSION EMPLOYING FEEDBACK INFORMATION
    93.
    发明申请
    METHOD FOR PACKET RETRANSMISSION EMPLOYING FEEDBACK INFORMATION 有权
    使用反馈信息进行分组重传的方法

    公开(公告)号:US20090249158A1

    公开(公告)日:2009-10-01

    申请号:US12348447

    申请日:2009-01-05

    IPC分类号: H04L1/14 G06F11/14

    摘要: A method for packet retransmission employing feedback information is disclosed. The method for packet retransmission employing feedback information comprises receiving reception acknowledgement information from a receiver after a transmitter transmits packets, the reception acknowledgement information representing channel status information and decoding success/failure of the packets; and changing a retransmission mode in accordance with the channel status information if the reception acknowledgement information represents decoding failure, and transmitting retransmission packets of the packets in accordance with the changed retransmission mode. Thus, it is possible to improve decoding probability of the receiver and increase efficiency of retransmission.

    摘要翻译: 公开了一种采用反馈信息的分组重发方法。 采用反馈信息的分组重发方法包括:在发射机发送分组之后从接收机接收接收确认信息,接收确认信息表示信道状态信息,解码分组成功/失败; 以及如果所述接收确认信息表示解码失败,则根据所述信道状态信息来改变重发模式,并且根据改变的重传模式发送所述分组的重传分组。 因此,可以提高接收机的解码概率,提高重传效率。

    FRAME FOR FLEXIBLY SUPPORTING HETEROGENEOUS MODES AND TDD/FDD MODES, AND METHOD FOR TRANSMITTING SIGNALS USING THE SAME
    94.
    发明申请
    FRAME FOR FLEXIBLY SUPPORTING HETEROGENEOUS MODES AND TDD/FDD MODES, AND METHOD FOR TRANSMITTING SIGNALS USING THE SAME 失效
    用于灵活支持异构模式和TDD / FDD模式的框架,以及使用该模式发送信号的方法

    公开(公告)号:US20090219875A1

    公开(公告)日:2009-09-03

    申请号:US12348100

    申请日:2009-01-02

    IPC分类号: H04J99/00 H04W4/00 H04L27/28

    CPC分类号: H04B7/2615

    摘要: A frame structure for flexibly supporting heterogeneous modes and TDD/FDD modes and a method for transmitting signals using the same are disclosed. A method for transmitting a signal using a preset frame structure in a communication system which supports a TDD mode and an FDD mode and supports two or more different communication schemes includes constructing a signal in units of the frames and transmitting the signal, wherein at least one of determination of a ratio of a DL region and a UL region within the frame when the communication system communicates according to the TDD mode allocation of a time region according to the modes of the communication schemes when the communication system communicates according to a heterogeneous mode supporting the two or more communication schemes and setting of a construction scheme of sub-frames within the frame in units of a prescribed number of the frames or super-frames, is performed on the basis of a specific unit comprised of n OFDM symbols corresponding to a multiple of a UL subchannelization unit.

    摘要翻译: 公开了一种用于灵活支持异构模式和TDD / FDD模式的帧结构,以及一种用于发送使用其的信号的方法。 一种在支持TDD模式和FDD模式并支持两种或多种不同通信方式的通信系统中使用预设帧结构发送信号的方法包括以帧为单位构建信号并发送信号,其中至少一个 当通信系统根据异构模式支持进行通信时,根据通信方式的模式,当通信系统根据时间区域的TDD模式分配进行通信时,确定帧内的DL区域和UL区域的比率 基于由对应于n个OFDM符号的n个OFDM符号组成的特定单元来执行两个或更多个通信方案和以规定数量的帧或超帧为单位的帧内的子帧的构造方案的设置 UL子信道化单元的倍数。

    METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING MULTI-BAND RADIO FREQUENCIES
    95.
    发明申请
    METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING MULTI-BAND RADIO FREQUENCIES 有权
    使用多频无线电频率发送和接收信号的方法

    公开(公告)号:US20090175243A1

    公开(公告)日:2009-07-09

    申请号:US12343241

    申请日:2008-12-23

    IPC分类号: H04B7/216

    摘要: A method for transmitting and receiving signals using multi-band Radio Frequencies (RFs) is provided. The method performs channel coding on an information unit of a specific layer above a physical layer to produce a specific number of codewords and maps the generated specific number of codewords to a plurality of frequency allocation bands managed by one specific layer, and then transmits the mapped signal through each of the plurality of frequency allocation bands. Each of the plurality of frequency allocation bands managed by the one specific layer has a band size for allocation for a specific service according to a predetermined frequency policy. When the generated specific number of codewords is mapped to the plurality of frequency allocation bands, each of the specific number of codewords is mapped to at least one of the plurality of frequency allocation bands. A frequency allocation band used for transmission of each codeword when the codeword is retransmitted may be set to be different from that when it is initially transmitted.

    摘要翻译: 提供了使用多频带无线电频率(RF)发送和接收信号的方法。 该方法在物理层上的特定层的信息单元上执行信道编码以产生特定数量的码字,并将生成的特定数量的码字映射到由一个特定层管理的多个频率分配带,然后发送映射 通过多个频率分配频带中的每一个发送信号。 由一个特定层管理的多个频率分配频带中的每一个根据预定频率策略具有用于特定服务的分配的频带大小。 当生成的特定数量的码字被映射到多个频率分配频带时,每个特定数量的码字被映射到多个频率分配频带中的至少一个。 当重发码字时,用于发送每个码字的频率分配频带可以被设置为与初始发送时的频率分配频带不同。

    Method of constructing a frame by multiplexing subframes having different CP length
    97.
    发明授权
    Method of constructing a frame by multiplexing subframes having different CP length 失效
    通过复用具有不同CP长度的子帧来构造帧的方法

    公开(公告)号:US08665907B2

    公开(公告)日:2014-03-04

    申请号:US13055658

    申请日:2009-08-26

    IPC分类号: H04J3/16

    CPC分类号: H04L27/2602 H04L27/2607

    摘要: The present invention relates to a broadband wireless access system, and more particularly, to a frame structure to which OFDM symbols having a cyclic prefix are transmitted. A method of constructing a frame in a broadband wireless access system according to one embodiment of the present invention comprises including one or more first subframes in the frame, the first subframes including a plurality of symbols having a cyclic prefix of a first length; and including one or more second subframes in the frame, the second subframes including a plurality of symbols having a cyclic prefix of a second length different from the first length, wherein the number of the first subframes and the number of the second subframes are determined considering an idle time for which effective symbols are not included in the frame.

    摘要翻译: 宽带无线接入系统技术领域本发明涉及宽带无线接入系统,更具体地,涉及发送具有循环前缀的OFDM符号的帧结构。 根据本发明的一个实施例的在宽带无线接入系统中构造帧的方法包括在帧中包括一个或多个第一子帧,第一子帧包括具有第一长度的循环前缀的多个符号; 并且在所述帧中包括一个或多个第二子帧,所述第二子帧包括具有不同于所述第一长度的第二长度的循环前缀的多个符号,其中所述第一子帧的数量和所述第二子帧的数量被考虑 有效符号不包括在帧中的空闲时间。