Method for setting cyclic shift considering frequency offset
    1.
    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:US07792212B2

    公开(公告)日:2010-09-07

    申请号:US11969834

    申请日:2008-01-04

    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 SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET
    2.
    发明申请
    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET 有权
    设定考虑频率偏移的循环移位的方法

    公开(公告)号:US20080168114A1

    公开(公告)日:2008-07-10

    申请号:US11969834

    申请日:2008-01-04

    IPC分类号: G06F9/315

    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 communicating with relay station
    6.
    发明授权
    Method for communicating with relay station 失效
    与中继站通信的方法

    公开(公告)号:US08787269B2

    公开(公告)日:2014-07-22

    申请号:US12738122

    申请日:2008-11-12

    IPC分类号: H04W4/00 H04B7/14

    摘要: A method for communicating with a relay station is disclosed. The method for communicating with a relay station comprises transmitting resource allocation information of downlink traffic and uplink traffic from a base station to the relay; and transmitting the downlink traffic to the relay by encapsulating the downlink traffic in accordance with the resource allocation information and receiving encapsulated uplink traffic from the relay in accordance with the resource allocation information. It is possible to enable efficient communication through a relay using a minimum interface without deterioration of throughput even in the case that a base station does not know detailed attributes of a relay existing in a system. Also, it is possible to coordinate collision through a master relay in case of a system supporting multi-hop relays.

    摘要翻译: 公开了一种与中继站进行通信的方法。 与中继站进行通信的方法包括从基站向中继发送下行链路业务和上行流量的资源分配信息; 以及根据所述资源分配信息封装所述下行链路业务并根据所述资源分配信息从所述中继站接收封装的上行链路业务,向所述中继发送下行业务。 即使在基站不知道存在于系统中的继电器的详细属性的情况下,也可以通过使用最小接口的中继器进行有效的通信,而不会降低吞吐量。 此外,在支持多跳中继的系统的情况下,可以通过主中继来协调冲突。

    Method of transmitting a wideband frame
    8.
    发明授权
    Method of transmitting a wideband frame 有权
    发送宽带帧的方法

    公开(公告)号:US08654718B2

    公开(公告)日:2014-02-18

    申请号:US12677439

    申请日:2008-09-22

    IPC分类号: H04W72/00

    摘要: A method of transmitting a wideband frame for a wideband system having backward compatibility with a narrowband system includes configuring a wideband carrier by using a set of base carriers, wherein a bandwidth of the base carriers corresponds to a bandwidth of the narrowband system and any one of center frequencies of the base carriers is the same as a center frequency of the narrowband system, and allocating all or some of guard subcarriers between the two adjacent base carriers to a traffic channel when a center frequency spacing between two adjacent base carriers is an integer multiple of a subcarrier spacing. Accordingly, the method can be used to support backward compatibility with the narrowband system. Further, the method can be equally used when the narrowband system co-exists with the wideband system in a guard band defined in a narrowband of a new system.

    摘要翻译: 对于具有与窄带系统具有向后兼容性的宽带系统的宽带帧的发送方法包括:通过使用一组基站载波来配置宽带载波,其中,所述基站载波的带宽对应于所述窄带系统的带宽, 基站载波的中心频率与窄带系统的中心频率相同,并且当两个相邻基站载波之间的中心频率间隔为整数倍时,将两个相邻基站载波之间的全部或一些保护副载波分配给业务信道 的子载波间隔。 因此,该方法可以用于支持与窄带系统的向后兼容性。 此外,当窄带系统与限定在新系统的窄带中的保护频带中的宽带系统共存时,该方法可以同样地使用。