Systems and methods for use with orthogonal frequency division multiplexing
    61.
    发明授权
    Systems and methods for use with orthogonal frequency division multiplexing 有权
    用于正交频分复用的系统和方法

    公开(公告)号:US08804609B2

    公开(公告)日:2014-08-12

    申请号:US11666882

    申请日:2005-10-13

    IPC分类号: H04W4/00

    摘要: Systems and methods are provided for enabling H-ARQ communication between a base station and one or more wireless terminals. Methods for enabling incremental redundancy (IR) based H-ARQ, Chase based H-ARQ and Space-Time Code combining (STC) based H-ARQ between devices for down-link and up-link direction transmissions are provided in the form of an information element (IE) for use with a Normal MAP convention as currently accepted in the draft version standard of IEEE 802.16. In addition, embodiments of the invention provide a resource management scheme to protect a network from abuse of resources from a wireless terminal not registered with the network. Components of the down-link and up-link mapping components of a data frame transmitted from the base station to one or more wireless terminals included messages that are readable by all wireless terminals as well as some messages that are encrypted and only readable by wireless terminals that are authenticated as being registered with the network.

    摘要翻译: 提供了用于使基站与一个或多个无线终端之间进行H-ARQ通信的系统和方法。 在下行链路和上行链路方向传输的设备之间使用基于H-ARQ,基于Chase的H-ARQ和基于空时码合并(STC)的H-ARQ的方法可以以 信息元素(IE),用于IEEE 802.16草案版本标准中当前接受的普通MAP约定。 此外,本发明的实施例提供了一种资源管理方案,用于保护网络免受来自未向网络注册的无线终端的资源的滥用。 从基站发送到一个或多个无线终端的数据帧的下行链路和上行链路映射组件的组件包括可由所有无线终端读取的消息以及被加密且仅由无线终端可读的一些消息 被认证为在网络上注册。

    Distributed ARQ for wireless communication system
    63.
    发明授权
    Distributed ARQ for wireless communication system 有权
    分布式ARQ用于无线通信系统

    公开(公告)号:US08654699B2

    公开(公告)日:2014-02-18

    申请号:US12922486

    申请日:2009-03-13

    IPC分类号: H04B7/14

    摘要: Systems and methods for providing distributed Automatic Repeat Request (ARQ) in a wireless communication system are described herein. In one embodiment, a relay station interconnects a base station of the wireless communication system and one or more mobile stations. A first ARQ process is performed for a first connection between the base station and the relay station. A separate second ARQ process is performed for a second connection between the relay station and a mobile station. In this manner, rather than having end-to-end ARQ between the base station and the mobile station, a distributed ARQ process is provided.

    摘要翻译: 在这里描述了用于在无线通信系统中提供分布式自动重传请求(ARQ)的系统和方法。 在一个实施例中,中继站将无线通信系统的基站和一个或多个移动站互连。 对于基站和中继站之间的第一连接执行第一ARQ处理。 针对中继站和移动台之间的第二连接执行单独的第二ARQ处理。 以这种方式,不是在基站和移动台之间具有端对端ARQ,而是提供分布式ARQ过程。

    Soft handoff in OFDMA system
    65.
    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。

    Ranging Regions for Wireless Communication Relay Stations
    66.
    发明申请
    Ranging Regions for Wireless Communication Relay Stations 审中-公开
    无线通信中继站测距区域

    公开(公告)号:US20130064171A1

    公开(公告)日:2013-03-14

    申请号:US13616847

    申请日:2012-09-14

    IPC分类号: H04W88/04

    摘要: One embodiment of the present invention provides a unique ranging technique in wireless communication environments that employ relay stations associated with a base station. Each relay station, and optionally the base station itself, can be allocated a unique ranging region having unique ranging resources that may be used by a mobile station to initiate a ranging function with the corresponding relay station or base station.

    摘要翻译: 本发明的一个实施例提供了采用与基站相关联的中继站的无线通信环境中的唯一测距技术。 每个中继站以及可选的基站本身都可以被分配唯一的测距区域,该测距区域具有唯一的测距资源,该测距资源可以由移动台用于与对应的中继站或基站发起测距功能。

    Preambles in OFDMA system
    67.
    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。

    Efficient location updates, paging and short bursts
    68.
    发明授权
    Efficient location updates, paging and short bursts 有权
    高效的位置更新,寻呼和短脉冲串

    公开(公告)号:US08014377B2

    公开(公告)日:2011-09-06

    申请号:US11571094

    申请日:2005-06-27

    IPC分类号: H04J3/24

    摘要: A mobile terminal in a wireless communication network may be one of several modes of operation. When in an idle mode, the mobile terminal may avoid a lengthy random access procedure normally associated with responding to a page from a base station, if the base station includes in the page an indication of a resource that the mobile terminal may utilize when responding to the page. Additionally, the mobile terminal may transmit an efficient location update MAC header to a base station, whether prompted to by a page from the base station or not. Furthermore, without leaving the idle mode or a sleep mode, the mobile terminal may exchange short data burst messages with a base station.

    摘要翻译: 无线通信网络中的移动终端可以是若干操作模式之一。 当处于空闲模式时,如果基站在页面中包括移动终端在响应时可以利用的资源的指示,则移动终端可以避免通常与响应于来自基站的页面相关联的冗长的随机接入过程 这一页。 另外,移动终端可以向基站发送有效的位置更新MAC报头,无论是否由来自基站的页面提示。 此外,在不离开空闲模式或睡眠模式的情况下,移动终端可以与基站交换短数据突发消息。

    METHOD AND SYSTEM FOR IMPLEMENTING A WIRELESS NETWORK
    69.
    发明申请
    METHOD AND SYSTEM FOR IMPLEMENTING A WIRELESS NETWORK 有权
    实现无线网络的方法和系统

    公开(公告)号:US20110164878A1

    公开(公告)日:2011-07-07

    申请号:US12830224

    申请日:2010-07-02

    IPC分类号: H04B10/00 H04W4/00 H04J14/00

    摘要: Aspects of the present invention provide a multi-band hybrid Gigabit wireless communication system which is enabled by a number of different complementary access technologies to realize ubiquitous hyper-connectivity, true broadband, seamless operation and low power consumption. The system is capable of serving fixed, nomadic and mobile scenarios. The multi-band wireless system is a low power wireless system which operates in different frequency bands covering the spectrum from radio wave to optical wave by making use of both regulated bandwidths and unregulated bandwidths. Using low power distributed antenna and low power indoor and outdoor antennas enables the use of unregulated bandwidths as well as regulated bandwidths as the low power nature of the signals reduces the possibility of interference with the regulated use of the signals.

    摘要翻译: 本发明的方面提供了一种多频带混合千兆无线通信系统,其通过多种不同的互补接入技术来实现无处不在的超连接,真正的宽带,无缝操作和低功耗。 该系统能够提供固定,游牧和移动场景。 多频带无线系统是一种低功率无线系统,其通过利用调节带宽和不受限制的带宽来操作,覆盖从无线电波到光波的频谱的不同频带。 使用低功率分布式天线和低功率室内和室外天线使得可以使用不受监管的带宽以及调节带宽,因为信号的低功耗特性降低了干扰信号调节使用的可能性。

    METHOD AND SYSTEM FOR COMBINING OFDM AND TRANSFORMED OFDM
    70.
    发明申请
    METHOD AND SYSTEM FOR COMBINING OFDM AND TRANSFORMED OFDM 有权
    用于组合OFDM和变换OFDM的方法和系统

    公开(公告)号:US20110164491A1

    公开(公告)日:2011-07-07

    申请号:US13047259

    申请日:2011-03-14

    IPC分类号: H04J11/00

    摘要: Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed sequence of samples to be transmitted using conventional OFDM or transformed OFDM. The selection of a transform function for transforming the coded and modulated sequence of samples may be based on optimizing the transform function for particular operating conditions between the transmitter and receiver. In some embodiments of the invention OFDM and time transformed OFDM are multiplexed in time and/or frequency in a transmission frame. In some embodiments of the invention a pilot pattern is provided in which the pilot are sent using OFDM and data is sent using OFDM and/or transformed OFDM.

    摘要翻译: 提供了使OFDM发射机能够用于传输常规OFDM或变换OFDM形式的方法和系统。 提供了一种用于在IFFT之前变换样本的编码和调制序列的技术,其使得能够使用常规OFDM或变换OFDM来发送变换的样本序列。 用于变换样本的编码和调制序列的变换函数的选择可以基于优化发射机和接收机之间的特定操作条件的变换函数。 在本发明的一些实施例中,OFDM和时变OFDM在传输帧中以时间和/或频率被复用。 在本发明的一些实施例中,提供了导频模式,其中使用OFDM发送导频,并且使用OFDM和/或经变换的OFDM发送数据。