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
    • 17. 发明授权
    • Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system
    • 在正交频分复用通信系统中提供信道质量反馈的方法和装置
    • US08054894B2
    • 2011-11-08
    • US11552716
    • 2006-10-25
    • Weimin XiaoAmitava GhoshRapeepat Ratasuk
    • Weimin XiaoAmitava GhoshRapeepat Ratasuk
    • H04K1/10H04L27/28
    • H04L5/0044H04L1/0026H04L1/0036H04L5/0007H04L5/006
    • In an Orthogonal Frequency Division Multiplexing communication system, a user equipment reports channel quality information that is sufficient to construct a fading profile of a frequency bandwidth and that does not consuming the overhead resulting from the reporting of CQI for every sub-band of the frequency bandwidth. In the communication system, the frequency bandwidth may be represented by multiple sub-band levels, wherein each sub-band level comprises a division of the frequency bandwidth into a number of sub-bands different from the number of sub-bands of the other sub-band levels. The user equipment measures a channel quality associated with each sub-band of a sub-band level of the multiple sub-band levels, selects a sub-band of the sub-band level based on the measured channel qualities, and reports channel quality information associated with the selected sub-band to a radio access network.
    • 在正交频分复用通信系统中,用户设备报告信道质量信息,该信道质量信息足以构建频带宽度的衰落分布,并且不消耗由针对频带宽度的每个子带报告CQI所引起的开销 。 在通信系统中,频率带宽可以由多个子带电平表示,其中每个子带电平包括频带宽度划分成与另一个子带的子带数不同的多个子带 带级。 用户设备测量与多个子带级别的子带级别的每个子带相关联的信道质量,基于所测量的信道质量来选择子带级的子带,并且报告信道质量信息 与所选择的子带相关联到无线电接入网络。
    • 18. 发明授权
    • Method and apparatus for uplink power control in a frequency division multiple access communication system
    • 用于频分多址通信系统中的上行链路功率控制的方法和装置
    • US07738907B2
    • 2010-06-15
    • US11676357
    • 2007-02-19
    • Weimin XiaoAmitava GhoshRapeepat Ratasuk
    • Weimin XiaoAmitava GhoshRapeepat Ratasuk
    • H04B1/00H04B17/00H04B7/00H04Q11/12
    • H04W52/146H04W52/265
    • A communication system optimizes cell edge performance and spectral efficiency by determining an adaptive power control parameter based on system performance metrics measured by a serving Node B and further measured by, and reported to the serving Node B by, neighboring Node B's. The adaptive power control parameter is then used to determine an uplink transmit power of a user equipment (UE) served by the serving Node B. The uplink transmit power may be determined by the Node B and then conveyed to the UE, or the Node B may broadcast the adaptive power control parameter to the UE and the UE may self-determine the uplink transmit power. In addition, as a frequency reuse factor of one has been proposed for such communication systems, interference levels may be even further improved by employment of an intra-site interference cancellation scheme in the sectors serviced by the Node B.
    • 通信系统通过基于由服务节点B测量的系统性能指标来确定自适应功率控制参数来优化小区边缘性能和频谱效率,并由相邻节点B进一步测量并向服务节点B报告给服务节点B. 然后,使用自适应功率控制参数来确定由服务节点B服务的用户设备(UE)的上行链路发射功率。上行链路发射功率可以由节点B确定,然后传送给UE,或者节点B 可以向UE广播自适应功率控制参数,并且UE可以自行确定上行链路发射功率。 另外,由于已经为这种通信系统提出了一种频率复用因子,所以通过在由节点B服务的扇区中采用站内干扰消除方案,甚至可以进一步改善干扰水平。