Method and System for Wireless Communication in Multiple Operating Environments
    5.
    发明申请
    Method and System for Wireless Communication in Multiple Operating Environments 审中-公开
    多种操作环境中的无线通信方法与系统

    公开(公告)号:US20130028150A1

    公开(公告)日:2013-01-31

    申请号:US13620746

    申请日:2012-09-15

    IPC分类号: H04W88/06 H04W72/04

    摘要: A wireless communication method and system are provided. A first wireless communication numerology, e.g., OFDM operating parameters, corresponding to a first operational mode is established. A second wireless communication numerology corresponding to a second operational mode is also established. The first wireless communication numerology is different than the second wireless communication numerology. One of the first operational mode and the second operational mode is selected. One of the first wireless communication numerology and the second wireless communication numerology corresponding to the selected operational mode is used in which communication in the first operational mode and the second operational mode use substantially similar synchronization channels. The present invention also uses the same superframe structure for the first and second operational modes for Ultra-Mobile Broadband (“UMB”) networks and the same frame structure for the first and second operational modes for Long Term Evolution (“LTE”) networks.

    摘要翻译: 提供了一种无线通信方法和系统。 建立对应于第一操作模式的第一无线通信命令,例如OFDM操作参数。 还建立了对应于第二操作模式的第二无线通信命理。 第一种无线通信命理与第二种无线通信命理不同。 选择第一操作模式和第二操作模式之一。 使用与所选择的操作模式相对应的第一无线通信命令和第二无线通信命令之一,其中在第一操作模式和第二操作模式中的通信使用基本相似的同步信道。 本发明还针对超移动宽带(UMB)网络的第一和第二操作模式使用相同的超帧结构,以及用于长期演进(LTE)网络的第一和第二操作模式的相同帧结构。

    Soft handoff in OFDMA system
    6.
    发明授权
    Soft handoff in OFDMA system 有权
    OFDMA系统中的软切换

    公开(公告)号:US08446879B2

    公开(公告)日:2013-05-21

    申请号:US13551726

    申请日:2012-07-18

    IPC分类号: H04W36/18

    摘要: Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.

    摘要翻译: 披露了OFDMA系统中的软切换。 如果基站的导频信号强度超过定义的阈值,则将基站添加到活动集列表中。 多个正交频分复用(OFDM)符号中的子载波被划分并分配给子信道。 OFDM符号被分割和多路复用。 定义了具有子信道的第一维度和分割和多路复用的OFDM符号的第二维度的软切换区域。 软切换区具有子信道定义的子载波,例如相同的置换。

    Preambles in OFDMA system
    7.
    发明授权
    Preambles in OFDMA system 有权
    OFDMA系统中的前缀

    公开(公告)号:US08340072B2

    公开(公告)日:2012-12-25

    申请号:US13114579

    申请日:2011-05-24

    IPC分类号: H04W72/04

    摘要: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.

    摘要翻译: 本发明提供插入到OFDMA帧中并具有参与传输的所有基站的公共序列的前同步码。 用户站使用公共前导码上的公共序列执行精细同步,并且所得到的峰值将提供候选基站的位置。 然后通过使用基站专用伪噪声序列,在那些峰附近执行基站专用搜索。 通过这两个阶段的单元格搜索,搜索窗口大大减少。 前导码由相应的接收机与已知值匹配以对信号进行解码,并允许多个信号从发射机传送到接收机。 前导码可以包括两个部分,即前导码1和前导码2,其可以在不同的系统中使用,包括多输入多输入(MIMO)系统。

    ZONES FOR WIRELESS NETWORKS WITH RELAYS
    8.
    发明申请
    ZONES FOR WIRELESS NETWORKS WITH RELAYS 有权
    无线网络连接区域

    公开(公告)号:US20090303918A1

    公开(公告)日:2009-12-10

    申请号:US12093202

    申请日:2006-11-10

    IPC分类号: H04B7/14 H04W4/00

    摘要: Methods and systems are provided for use with wireless networks having once or more cell in which each cell includes a base station (BS), at least one relay station (RS) and at least one mobile station (MS). The at least one relay station can be used as an intermediate station for providing communication between the BS and MS. Methods are provided for an RS to initially access the network, access of the RS by MSs initially accessing the network, methods of allocating OFDM resources for communicating between the BS, RS and/or MS for example dividing transmission resources into uplink and downlink transmissions, and methods of inserting pilot symbols into transmission resources used by the RS. In some embodiments on the invention, the methods are consistent and/or can be used in conjunction with existing standards such as 802.16e.

    摘要翻译: 方法和系统被提供用于具有一个或多个小区的无线网络,其中每个小区包括基站(BS),至少一个中继站(RS)和至少一个移动台(MS)。 所述至少一个中继站可以用作在BS和MS之间提供通信的中间站。 提供了用于RS初始接入网络的方法,初始访问网络的MS接入RS的方法,用于分配用于BS,RS和/或MS之间通信的OFDM资源的方法,例如将传输资源划分为上行链路和下行链路传输, 以及将导频符号插入到由RS使用的传输资源中的方法。 在本发明的一些实施例中,所述方法是一致的和/或可以与诸如802.16e的现有标准结合使用。