会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • TRANSMISSION COORDINATION FOR SDMA DOWNLINK COMMUNICATION
    • SDMA下行链路通信的传输协调
    • WO2005062793A3
    • 2005-09-09
    • PCT/US2004042449
    • 2004-12-17
    • INTEL CORPHO MINNIESTEPHENS ADRIANLI QINGHUA
    • HO MINNIESTEPHENS ADRIANLI QINGHUA
    • H04L12/28
    • H04L12/2854
    • According to some embodiments, a technique is provided that coordinates transmission of frames to reduce collisions. Frames are coordinated according to, for example, operation type, frame length, and solicited response. A bases station gains access to a wireless medium and transmits multiple coordinated frames to multiple communication units. The transmissions to the multiple communication units may be substantially simultaneous in that at least a portion of the different frames are transmitted at the same time. The different frames may be substantially back-end aligned where the maximum difference between the termination time instances of the frame transmissions is controlled to reduce collisions.
    • 根据一些实施例,提供了一种协调帧的传输以减少冲突的技术。 根据例如操作类型,帧长度和请求响应来协调帧。 基站获得对无线介质的访问并将多个协调帧发送到多个通信单元。 到多个通信单元的传输可以是基本上同时的,因为至少一部分不同的帧是同时传输的。 在帧传输的终止时间实例之间的最大差异被控制以减少冲突的情况下,不同的帧可以基本上被后端对齐。
    • 8. 发明申请
    • MULTICARRIER MIMO TRANSMISSION
    • MULTICARRIER MIMO传输
    • WO2005022681A3
    • 2005-07-21
    • PCT/US2004025509
    • 2004-08-06
    • INTEL CORP
    • SADOWSKY JOHNHO MINNIESANDHU SUMEETMALTSEV ALEXANDERJACOBSEN ERICSADRI ALI
    • H04B7/04H04L1/06H04L27/26H04W16/28H04W74/02
    • H04W16/28H04B7/0408H04L27/2602H04W74/02
    • In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels., Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.
    • 在正交频分复用(OFDM)系统中,发射机和/或接收机在非正交空间信道上传送单独的数据流,每个空间信道可以使用相同的OFDM子载波集合,并且可以利用 空间信道允许附加数据的通信,而不增加频率带宽。 可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配,以帮助最大化信道的数据承载能力。 在一些实施例中,每个空间信道可以与多个空间多样的天线中的一个相关联。 在其他实施例中,可以执行波束成形以允许空间信道内的信号的发送和/或接收。