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    • 8. 发明授权
    • Self adaptive multi-level downlink power control for noise-limited wireless cellular networks
    • 用于噪声限制无线蜂窝网络的自适应多电平下行链路功率控制
    • US08908551B2
    • 2014-12-09
    • US13626177
    • 2012-09-25
    • Amine MaarefYing QianHadi BalighJianglei Ma
    • Amine MaarefYing QianHadi BalighJianglei Ma
    • H04L1/00
    • H04W52/343H04W52/143H04W52/283H04W52/367
    • The invention provides a self-adaptive downlink power control scheme for OFDMA-based wireless cellular networks suitable for noise-limited environments. Downlink power levels are assigned in a distributed manner in the absence of any requirement for coordination or cooperation between cells. Distributed assignment allows for more optimal usage of the available transmit power at the base stations and more complete exploitation of the flexibility of frequency domain scheduling. In one embodiment, base stations in a cellular network service mobile user equipment within the respective base station coverage areas, and categorize the user equipment in a plurality of power levels according to certain criteria in accordance with such factors as channel experience and quality. A load-balancing self-adjustment mechanism allows automatic balancing of the load between different power levels.
    • 本发明为适用于噪声限制环境的基于OFDMA的无线蜂窝网络提供了自适应下行链路功率控制方案。 在没有任何细胞之间进行协调或协作的要求的情况下,分布式分配下行链路功率级别。 分布式分配允许更好地使用基站的可用发射功率,并更全面地利用频域调度的灵活性。 在一个实施例中,在各个基站覆盖区域内的蜂窝网络服务移动用户设备中的基站,并且根据诸如频道体验和质量等因素,根据特定标准将用户设备分类为多个功率级别。 负载平衡自调整机制允许在不同功率水平之间自动平衡负载。