METHOD FOR PACKET RETRANSMISSION EMPLOYING FEEDBACK INFORMATION
    142.
    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
    143.
    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
    145.
    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 for constructing RACH preamble and method for transmitting RACH signal
    148.
    发明授权
    Method for constructing RACH preamble and method for transmitting RACH signal 有权
    用于构建RACH前导码的方法和用于发送RACH信号的方法

    公开(公告)号:US08660066B2

    公开(公告)日:2014-02-25

    申请号:US13332298

    申请日:2011-12-20

    IPC分类号: H04W4/00

    摘要: A wireless communication system is disclosed. A method for constructing a RACH preamble according to a cell radius of a base station (BS) irrespective of a guard time (GT) and a method for allocating the RACH preamble are disclosed. A method for constructing a preamble of a random access channel (RACH) includes acquiring time-length information of a predetermined cyclic prefix (CP) for each cell radius of a base station (BS), acquiring sequence time-length information of a single sequence or a repeated sequence, and constructing the preamble using the predetermined CP time-length information and the sequence time-length information, irrespective of a time length of a guard time (GT).

    摘要翻译: 公开了一种无线通信系统。 公开了一种根据基站(BS)的小区半径来构造RACH前同步码的方法,而不考虑保护时间(GT)以及分配RACH前同步码的方法。 一种用于构建随机接入信道(RACH)的前同步码的方法包括获取基站(BS)的每个小区半径的预定循环前缀(CP)的时间长度信息,获取单个序列的序列时长信息 或重复序列,并且使用预定CP时间长度信息和序列时间长度信息来构造前导码,而与保护时间(GT)的时间长度无关。