SYSTEM AND METHOD FOR SPATIAL MULTIPLEXING-BASED MULTIPLE ANTENNA BROADCAST/MULTICAST TRANSMISSION
    1.
    发明申请
    SYSTEM AND METHOD FOR SPATIAL MULTIPLEXING-BASED MULTIPLE ANTENNA BROADCAST/MULTICAST TRANSMISSION 审中-公开
    用于空间多路复用的多天线广播/多播传输的系统和方法

    公开(公告)号:WO2009094744A1

    公开(公告)日:2009-08-06

    申请号:PCT/CA2008/000203

    申请日:2008-02-01

    Abstract: Methods and devices are provided for implementing two types of sub-channel arrangements. A first type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion of a transmission resource, transmitting broadcast traffic on at least one first antenna of a plurality of antennas in the first traffic portion using a first sub- channelization, transmitting multicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, in the first traffic portion using a second sub- channelization, and transmitting unicast traffic on at least one antenna of the plurality of antennas in the second traffic portion using a third sub-channelization. A second type of sub- channel arrangement involves defining a first traffic portion and a second traffic portion, wherein for a portion of the transmission resource, a portion of the first traffic portion overlaps with a portion of the second traffic portion. In the portion of the transmission resource in which a portion of the first traffic portion overlaps with a portion of the second traffic portion, the channel arrangement involves transmitting broadcast/multicast traffic on at least one first antenna of a plurality of antennas using a first sub-channelization and b) transmitting unicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, using a second sub-channelization. The first, second and third sub- channelizations may be based on either one of or a combination of FDM sub-channelization and TDM sub-channelization.

    Abstract translation: 提供了用于实现两种类型的子通道布置的方法和装置。 第一类型的子信道布置涉及定义传输资源的第一业务部分和第二业务部分,使用第一子信道化在第一业务部分中的多个天线的至少一个第一天线上发送广播业务, 在所述多个天线中的至少一个第二天线上发送组播业务,所述至少一个第二天线与所述至少一个第一天线不同,所述第一业务部分使用第二子信道化,并且至少在第一业务部分中传输单播业务 第二业务部分中的多个天线中的一个天线使用第三子信道化。 第二类型的子信道布置涉及定义第一业务部分和第二业务部分,其中对于传输资源的一部分,第一业务部分的一部分与第二业务部分的一部分重叠。 在第一业务部分的一部分与第二业务部分的一部分重叠的传输资源的部分中,信道配置涉及使用第一子信道在多个天线的至少一个第一天线上发送广播/组播业务 - 通道化和b)在所述多个天线的至少一个第二天线上发射单播业务,所述至少一个第二天线与所述至少一个第一天线不同,使用第二子信道化。 第一,第二和第三子信道化可以基于FDM子信道化和TDM子信道化的任何一个或组合。

    METHODS AND SYSTEMS FOR WIRELESS NETWORKS WITH RELAYS
    5.
    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:WO2007147231A1

    公开(公告)日:2007-12-27

    申请号:PCT/CA2007/000965

    申请日:2007-05-31

    Abstract: 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 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.

    Abstract translation: 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。 提供了用于分配用于BS,RS和/或MS之间的通信的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。

    RANGING REGIONS FOR WIRELESS COMMUNICATION RELAY STATIONS
    6.
    发明申请
    RANGING REGIONS FOR WIRELESS COMMUNICATION RELAY STATIONS 审中-公开
    无线通信中继站范围

    公开(公告)号:WO2007141617A1

    公开(公告)日:2007-12-13

    申请号:PCT/IB2007/001452

    申请日:2007-06-01

    CPC classification number: H04B7/15542 H04W88/04 H04W92/10

    Abstract: 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.

    Abstract translation: 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。

    OFDM SYSTEM WITH REVERSE LINK INTERFERENCE ESTIMATION
    10.
    发明申请
    OFDM SYSTEM WITH REVERSE LINK INTERFERENCE ESTIMATION 审中-公开
    具有反向链路干扰估计的OFDM系统

    公开(公告)号:WO2006060892A1

    公开(公告)日:2006-06-15

    申请号:PCT/CA2005/001571

    申请日:2005-10-14

    Abstract: A new method of performing interference estimation to allow the data packets to be efficiently delivered in an OFDM system. The interference estimation is performed on average over each frame for each mobile station individually in both frequency and time domains. Based on the estimated interference, the CIR can be determined by the BTS based on channel response estimates made by the BTS, or by the MS based on channel response estimates made for the uplink assuming a symmetrical channel. Numerical results show that the CIR estimation error could be very small if a sub-channel is considered as the minimum transmission unit. In terms of the aggregate throughput, the interference estimation method can provide a significant gain.

    Abstract translation: 一种执行干扰估计以允许在OFDM系统中有效地传送数据分组的新方法。 对于每个移动台,在频域和时域中分别对每个帧平均执行干扰估计。 基于估计的干扰,可以由BTS基于由BTS做出的信道响应估计来确定CIR,或者基于对假设对称信道的针对上行链路的信道响应估计由MS确定CIR。 数值结果表明,如果将子信道视为最小传输单元,则CIR估计误差可能非常小。 在总吞吐量方面,干扰估计方法可以提供显着的增益。

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