METHODS AND SYSTEMS FOR WIRELESS NETWORKS WITH RELAYS
    2.
    发明申请
    METHODS AND SYSTEMS FOR WIRELESS NETWORKS WITH RELAYS 审中-公开
    无线网络与继电器的方法与系统

    公开(公告)号:US20130028122A1

    公开(公告)日:2013-01-31

    申请号:US13618926

    申请日:2012-09-14

    摘要: Methods and systems are provided for use with wireless networks having one 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。

    METHODS AND SYSTEMS FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) MULTIPLE ZONE PARTITIONING
    3.
    发明申请
    METHODS AND SYSTEMS FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) MULTIPLE ZONE PARTITIONING 有权
    正交频分多址(OFDM)多区域分区的方法与系统

    公开(公告)号:US20120051457A1

    公开(公告)日:2012-03-01

    申请号:US13292643

    申请日:2011-11-09

    IPC分类号: H04L27/00 H04J4/00

    摘要: Aspects of the invention include methods and devices for inserting data and pilot symbols into Orthogonal Frequency Division Multiplexing (OFDM) frames having a time domain and a frequency domain. A method involves inserting in at least one zone of a first type a two dimensional array of data and pilot symbols in time and frequency and inserting in at least one zone of a second type a two dimensional array of data and pilot symbols in time and frequency. In some implementations the zone of the first type comprises common pilot symbols that can be detected by all receivers receiving the OFDM frame. In some implementations the zone of the second type comprises dedicated pilot symbols that are only detectable by a receiver that is aware of pre-processing used to encode the dedicated pilot symbols.

    摘要翻译: 本发明的方面包括用于将数据和导频符号插入具有时域和频域的正交频分复用(OFDM)帧的方法和装置。 一种方法包括在时间和频率上插入数据和导频符号的二维阵列的第一类型的至少一个区域,并在第二类型的至少一个区域中插入时间和频率的数据和导频符号的二维阵列 。 在一些实现中,第一类型的区域包括可由接收OFDM帧的所有接收机检测的公共导频符号。 在一些实施方式中,第二类型的区域包括专用导频符号,其仅可以被知道用于对专用导频符号进行编码的预处理的接收机检测。

    METHODS AND SYSTEMS FOR OFDM USING CODE DIVISION MULTIPLEXING
    7.
    发明申请
    METHODS AND SYSTEMS FOR OFDM USING CODE DIVISION MULTIPLEXING 有权
    使用码分多址的OFDM的方法和系统

    公开(公告)号:US20120087394A1

    公开(公告)日:2012-04-12

    申请号:US13333463

    申请日:2011-12-21

    IPC分类号: H04B1/707

    摘要: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.

    摘要翻译: 在本发明的一些实施例中,OFDM符号作为多个簇发送。 在多个OFDM符号持续时间内,群集包括频率上的多个OFDM子载波。 每个簇包括数据以及作为信道估计的参考信号的导频信息。 在一些实施例中,多个集群共同地占用用于传输的频域中的可用子载波集合。 在本发明的一些实施例中,使用码分多路复用(CDM)在每个簇内扩展数据和/或导频。 在一些实施例中,通过在OFDM码元持续时间的其余部分上分配关于多个OFDM符号持续时间的特定数目和导频上的数据来分离导频和数据。 可以在时间和/或频率方向上执行CDM扩展。

    EFFICIENT LOCATION UPDATES, PAGING AND SHORT BURSTS
    8.
    发明申请
    EFFICIENT LOCATION UPDATES, PAGING AND SHORT BURSTS 有权
    高效地点更新,寻找和短暂的冲刺

    公开(公告)号:US20110299439A1

    公开(公告)日:2011-12-08

    申请号:US13209019

    申请日:2011-08-12

    IPC分类号: H04W72/04 H04W52/02 H04J3/02

    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。

    X-MIMO SYSTEMS WITH MULTI-TRANSMITTERS AND MULTI-RECEIVERS
    9.
    发明申请
    X-MIMO SYSTEMS WITH MULTI-TRANSMITTERS AND MULTI-RECEIVERS 有权
    具有多发射机和多接收机的X-MIMO系统

    公开(公告)号:US20120039419A1

    公开(公告)日:2012-02-16

    申请号:US12806209

    申请日:2009-09-24

    IPC分类号: H04L27/06

    摘要: A method and apparatus for transmitting and receiving a wireless transmission of a plurality of data streams in a wireless communication system having a plurality of nodes is disclosed. Each node has multiple antennas. The method involves receiving first and second data streams from respective first and second nodes at a receiver node, causing the receiver node to generate a receive filter for decoding each of the received data streams, and causing the receiver node to transmit receive filter information for each of the first and second data streams, the receive filter information facilitating precoding of the first and second data streams for simultaneous transmission within a common frequency band to the receiver node.

    摘要翻译: 公开了一种用于在具有多个节点的无线通信系统中发送和接收多个数据流的无线传输的方法和装置。 每个节点有多个天线。 该方法包括从接收机节点处的相应第一和第二节点接收第一和第二数据流,使得接收机节点产生用于解码每个接收到的数据流的接收滤波器,并且使得接收机节点为每个接收节点发送接收滤波器信息 所述第一和第二数据流的接收滤波器信息有助于预编码第一和第二数据流,以在共同频带内同时传输到接收机节点。

    SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS
    10.
    发明申请
    SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS 有权
    用于MIMO-OFDM系统的散射引航模式和信道估计方法

    公开(公告)号:US20110216808A1

    公开(公告)日:2011-09-08

    申请号:US13108443

    申请日:2011-05-16

    IPC分类号: H04L27/28 H04B1/713

    摘要: Methods and apparatus are provided for inserting data symbols and pilot symbols in an OFDM (orthogonal frequency division multiplexing) transmission resource utilizing frequency hopping patterns for the data symbols and/or the pilot symbols. Data symbols and pilot symbols are allocated for down link (base station to mobile station) and up link (mobile station to bases station) transmission resources in a two-dimensional time-frequency pattern. For each antenna of a MIMO-OFDM (multiple input multiple output OFDM) communication system, pilot symbols are inserted in a scattered pattern in time-frequency and data symbols are inserted in an identical frequency-hopping pattern in time-frequency as that of other antennas.

    摘要翻译: 提供了使用用于数据符号和/或导频符号的跳频图案在OFDM(正交频分复用)传输资源中插入数据符号和导频符号的方法和装置。 数据符号和导频符号分配给二维时频模式的下行链路(基站到移动台)和上行链路(移动台到基站)的传输资源。 对于MIMO-OFDM(多输入多输出OFDM)通信系统的每个天线,导频符号以时间 - 频率的散射图案插入,并且数据符号以与其它信号的时间频率相同的跳频图案插入 天线。