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    • 6. 发明授权
    • Uplink transmit power control
    • 上行传输功率控制
    • US08233404B2
    • 2012-07-31
    • US12741003
    • 2007-12-14
    • Fredrik GunnarssonEva EnglundErik Geijer Lundin
    • Fredrik GunnarssonEva EnglundErik Geijer Lundin
    • H04L12/26
    • H04W52/241H04W52/243
    • Control of uplink transmit power for a first mobile station operating with scheduled uplink data transmissions. A change in uplink scheduled status for the first mobile station is detected (301). Filtering of uplink interference measurements for the first mobile station is adapted (302) to account for the detected change in uplink scheduled status for the first mobile station. Alternatively a change in uplink scheduled status for a second mobile station is detected and a current filtering state for filtering of uplink interference measurements for the first mobile station is adjusted by applying an estimated expected change in interference associated with the detected change. A signal quality for uplink transmissions from the first mobile station is determined (303) based on measurements of received signal strength from the mobile station and the filtered uplink interference measurements. An uplink transmit power command is generated (304) for the first mobile station based on a comparison of the estimated signal quality to a signal quality target.
    • 控制用调度的上行链路数据传输操作的第一移动台的上行链路发射功率。 检测到第一移动台的上行链路调度状态的变化(301)。 针对第一移动站的上行链路干扰测量的过滤被适配(302)以考虑检测到的针对第一移动站的上行链路调度状态的改变。 或者,检测第二移动站的上行链路调度状态的改变,并且通过应用与检测到的改变相关联的干扰的估计的预期变化来调整用于对第一移动站的上行链路干扰测量进行滤波的当前过滤状态。 基于来自移动台的接收信号强度的测量和经滤波的上行链路干扰测量,确定来自第一移动台的上行链路传输的信号质量(303)。 基于估计的信号质量与信号质量目标的比较,为第一移动台生成(304)上行链路发送功率命令。
    • 8. 发明授权
    • Signal to interference ratio error as a load instability indicator for load control in cellular systems
    • 信号与干扰比误差作为负载不稳定指标,用于蜂窝系统中的负载控制
    • US07983687B2
    • 2011-07-19
    • US11798331
    • 2007-05-11
    • Eva EnglundFredrik GunnarssonGunnar BarkPatrik Karlsson
    • Eva EnglundFredrik GunnarssonGunnar BarkPatrik Karlsson
    • H04W72/00
    • H04B17/336
    • An uplink signal-to-interference ratio for each of multiple mobile radio terminal connections supported in a cell in a cellular communications system is estimated. A signal-to-interference ratio error is determined for selected ones of the estimated uplink signal-to-interference ratios. One or more signal-to-interference ratio errors are identified that exceed a signal-to-interference ratio error threshold. An instability indicator associated with the cell is determined based on the one or more identified signal-to-interference ratio errors. A load control decision and/or a decision for scheduling one or more uplink mobile radio transmissions in the cell may then be made based on the instability indicator, e.g., to prevent a transmission power rush in the uplink in the cell and/or to efficiently use available resources for uplink transmissions.
    • 估计在蜂窝通信系统的小区中支持的多个移动无线终端连接中的每一个的上行链路信号干扰比。 对所估计的上行链路信号干扰比中的所选择的信号干扰比确定信号干扰比误差。 识别超过信号干扰比误差阈值的一个或多个信号干扰比误差。 基于一个或多个识别的信号与干扰比误差来确定与小区相关联的不稳定性指示符。 然后可以基于不稳定性指示符来进行用于调度小区中的一个或多个上行链路移动无线电传输的负载控制决定和/或决定,例如,以防止小区中的上行链路中的传输功率冲击和/或有效地 使用可用资源进行上行链路传输。