METHOD FOR SUB -PACKET GENERATION WITH ADAPTIVE BIT INDEX
    3.
    发明公开
    METHOD FOR SUB -PACKET GENERATION WITH ADAPTIVE BIT INDEX 有权
    自适应比特图的生成方法在包

    公开(公告)号:EP2111703A1

    公开(公告)日:2009-10-28

    申请号:EP08766306.8

    申请日:2008-06-13

    IPC分类号: H04L1/18

    摘要: A method of generating a sub-packet in consideration of an offset is disclosed. A method of generating a sub- packet in consideration of an offset, for re- transmission of a packet from systematic bits and parity bits stored in a circular buffer includes turbo-coding an input bitstream at a predetermined code rate and generating and storing the systematic bits and the parity bits in the circular buffer, and deciding a starting position of the sub-packet in the circular buffer in consideration of the offset for puncturing at least a portion of the systematic bits of the circular buffer. Accordingly, it is possible to efficiently decide the starting position of the sub-packet to be transmitted adaptively with respect to a variable packet length, improving a coding gain, reducing complexity and reducing a calculation amount.

    TRANSMISSION METHOD OF DOWNLINK REFERENCE SIGNAL AND APPARATUS THEREOF
    9.
    发明公开
    TRANSMISSION METHOD OF DOWNLINK REFERENCE SIGNAL AND APPARATUS THEREOF 审中-公开
    VERFAHREN ZURÜBERTRAGUNGEINES DOWNLINK-REFERENZSIGNALS UND VORRICHTUNGDAFÜR

    公开(公告)号:EP2418781A2

    公开(公告)日:2012-02-15

    申请号:EP10761912.4

    申请日:2010-04-12

    IPC分类号: H04B7/06 H04J11/00 H04W48/12

    CPC分类号: H04L5/0053

    摘要: The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.

    摘要翻译: 无线通信系统技术领域本发明涉及一种无线通信系统,提供了一种用于在无线通信系统中发送下行链路参考信号的方法和装置。 根据本发明的一个实施例,使基站能够使用8或更小层的参考信号将参考信号发送到终端的方法包括以下步骤:通过数据域的数据域传送8或更小层的数据 下行子帧; 并且在下行链路子帧的固定OFDM符号上发射8或更小层的参考信号,其中参考信号是对8或更小层的数据进行解调的DRS(专用参考信号),参考信号 8或更小层的信号被分成第1组和第2组,第一组和第二组的参考信号可以分别以一个资源元素的CDM(码分复用)方式多路复用。

    METHOD AND APPARATUS FOR PERFORMING HARQ IN WIRELESS COMMUNICATION SYSTEM
    10.
    发明公开
    METHOD AND APPARATUS FOR PERFORMING HARQ IN WIRELESS COMMUNICATION SYSTEM 有权
    方法和设备,在一个无线通信系统中进行HARQ

    公开(公告)号:EP2374235A2

    公开(公告)日:2011-10-12

    申请号:EP09833612.6

    申请日:2009-12-14

    IPC分类号: H04L1/18 H04B7/04

    摘要: A method and an apparatus for performing hybrid automatic repeat request (HARQ) using constellation rearrangement and a circular buffer in a wireless communication system is provided. An encoded information bit is stored into a circular buffer. A transport block in selected from the circular buffer. A bit set comprising n bits of the transport block is mapped to a data symbol on a constellation for 2
    n -QAM modulation according to a first mapping order. The bit set is mapped according to a second mapping order when the bits of the transport block are subject to wrap¬ around at the end of the circular buffer.