Method for generating control channel and decoding control channel, base station and mobile station thereof
    34.
    发明授权
    Method for generating control channel and decoding control channel, base station and mobile station thereof 失效
    用于产生控制信道和解码控制信道,基站及其移动台的方法

    公开(公告)号:US08462740B2

    公开(公告)日:2013-06-11

    申请号:US12681374

    申请日:2008-10-01

    IPC分类号: H04J3/00

    CPC分类号: H04W28/06 H04L5/0053

    摘要: A control channel generation method, a control channel decoding method, and a BS and an MS for implementing the methods are provided. The control channel generation method includes placing a frame control header (FCH) and a MAP within a TTI and generating a control channel for an enhanced communication system at a position after the MAP within the TTI. Another control channel generation method includes generating a control channel for the enhanced communication system and placing an FCH and a preamble at a position after the control channel. These methods enable implementation of an enhanced system that overcomes problems of the legacy system while minimizing influence exerted upon legacy MSs in the case where the base station generates a new control channel for a new MS or where an MS decodes a new control channel.

    摘要翻译: 提供了一种控制信道生成方法,控制信道解码方法以及用于实现该方法的BS和MS。 控制信道生成方法包括将帧控制报头(FCH)和MAP置于TTI内,并且在TTI内的MAP之后的位置生成用于增强型通信系统的控制信道。 另一种控制信道生成方法包括生成用于增强通信系统的控制信道,并且在控制信道之后的位置放置FCH和前导码。 这些方法使得能够实现在基站为新MS生成新的控制信道或者MS解码新的控制信道的情况下克服遗留系统的问题同时最小化对传统MS的影响的增强系统。

    Method for transmitting preamble in scalable bandwidth system
    36.
    发明授权
    Method for transmitting preamble in scalable bandwidth system 有权
    用于在可扩展带宽系统中发送前导码的方法

    公开(公告)号:US08457101B2

    公开(公告)日:2013-06-04

    申请号:US12348130

    申请日:2009-01-02

    IPC分类号: H04J3/06

    摘要: A method for transmitting a preamble in a scalable bandwidth system is disclosed. The method includes transmitting a primary synchronization channel to which symbols are allocated at intervals of two or more subcarriers, through a specific bandwidth out of an entire system bandwidth at a start time point of a synchronization period, and transmitting a secondary synchronization channel through the specific bandwidth with a prescribed time difference from the primary synchronization channel at the synchronization period. A mobile station can use the same search routine irrespective of a system bandwidth, does not experience any difficulty at a cell edge in establishing signal timing synchronization, can simply perform preamble search, and can transmit a signal in a maximum usable bandwidth, thereby improving the accuracy of location measurement.

    摘要翻译: 公开了一种用于在可扩展带宽系统中发送前同步码的方法。 该方法包括:在同步周期的起始时间点,通过特定带宽,在两个或多个子载波的间隔,以整个系统带宽发射符号的主同步信道,以及通过特定的 在同步期间具有与主同步信道的规定时间差的带宽。 无论系统带宽如何,移动站都可以使用相同的搜索程序,在建立信号定时同步时在小区边缘不会遇到任何困难,可以简单地执行前导码搜索,并且可以以最大可用带宽发送信号,从而改善 位置测量精度。

    Method for inserting parity to frame control header
    38.
    发明授权
    Method for inserting parity to frame control header 有权
    将奇偶校验插入帧控制头的方法

    公开(公告)号:US08385368B2

    公开(公告)日:2013-02-26

    申请号:US12680766

    申请日:2008-11-12

    IPC分类号: H04J3/24

    摘要: A method for inserting parity into an FCH is disclosed. A method for inserting parity into a frame control header includes channel-encoding, by an additional channel encoder, a frame control header bit applied to a legacy encoder, and generating an additional codeword, and mapping the codeword generated by the legacy encoder and the additional codeword to subcarriers. This method inserts parity into the FCH, and defines a new FCH, such that it extends an FCH coverage simultaneously while maintaining a compatibility with a legacy system. Also, it may add additional energy to a legacy FCH or may give a coding gain to the same legacy FCH, such that it can extend information transferable using reserved bits of the FCH.

    摘要翻译: 公开了一种将奇偶校验插入FCH的方法。 用于将奇偶校验插入到帧控制报头中的方法包括由附加信道编码器对应用于传统编码器的帧控制报头比特进行信道编码,并生成附加码字,以及映射由传统编码器生成的码字和附加码字 码字到子载波 该方法将奇偶校验插入到FCH中,并定义新的FCH,使得它同时扩展FCH覆盖,同时保持与遗留系统的兼容性。 此外,它可以向传统FCH添加额外的能量,或者可以向相同的传统FCH给出编码增益,使得其可以扩展使用FCH的保留位可传送的信息。

    Method for setting cyclic shift considering frequency offset
    39.
    发明授权
    Method for setting cyclic shift considering frequency offset 有权
    考虑频率偏移设置循环移位的方法

    公开(公告)号:US08374281B2

    公开(公告)日:2013-02-12

    申请号:US13286147

    申请日:2011-10-31

    IPC分类号: H04L27/04

    摘要: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)—applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

    摘要翻译: 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离,根据计算出的距离计算每组的循环移位数,并建立循环移位(CS)应用间隔 。 这种方法通过考虑接收(Rx)序列的信道响应和该接收(Rx)序列的别名位置而容易地在没有重叠的特定位置建立循环移位(CS)间隔,尽管接收(Rx)信号是 移动了信道延迟扩展或传播延迟,而与生成序列的域的类别无关,从而可以大大减少检测误差和误报率。 并且,如果将循环移位(CS)的序列分配给具有大于预定电平的频率偏移的小区,则本发明可以最小化频率偏移对高移动性小区的影响。

    Method for packet retransmission employing feedback information
    40.
    发明授权
    Method for packet retransmission employing feedback information 有权
    使用反馈信息的分组重传方法

    公开(公告)号:US08352825B2

    公开(公告)日:2013-01-08

    申请号:US12348447

    申请日:2009-01-05

    IPC分类号: H04L1/14

    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。