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    • 3. 发明申请
    • POWER CONTROL IN MCPA EQUIPPED BASE STATIONS
    • MCPA设备基站的功率控制
    • WO0233845A3
    • 2003-03-06
    • PCT/SE0102186
    • 2001-10-05
    • ERICSSON TELEFON AB L M
    • HEDBERG TOMAS
    • H04B7/005H04W52/52H03G3/20H04Q7/30
    • H04W52/52
    • A method and apparatus for controlling power in a wireless communication system is described. A base station and a Multiple Carrier Power Amplifier (MCPA) are split into at least two separate and an interface. An aggregate signal represents carrier signals from mobile stations served by the base station. MCPA gain level is adjusted to maintain a linear transmit power, measured during an interval, and related information fed back across the interface to the base station. A first and second control parameter such as power averaging period and sampling interval are provided from the base station to control the measuring of the gain. The interface may be digital and providing feedback includes defining a 100 % load level associated with the MCPA and feeding back information proportional to the measured gain level. The interval parameter may correspond to a synchronous interval, asynchronous, a time slot interval or irregular interval. A plurality of base stations may further be supported by one MCPA using several interfaces. A linear transmit power levey may be maintained by maintaining a power level associated with a control channel and autonomously adjusting second power levels may be prioritized and adjusted according to priority. To improve quality, a higher priority is assigned to relatively low powered remaining signals. Alternatively, control channel power level may be maintained, while receiving priorities over the interface from the base station to the MCPA and adjusting the one or more second power levels based on received priority.
    • 描述了一种在无线通信系统中控制功率的方法和装置。 基站和多载波功率放大器(MCPA)分为至少两个独立的接口。 聚合信号表示由基站服务的移动台的载波信号。 调整MCPA增益电平以保持在间隔期间测量的线性发射功率,以及通过接口反馈到基站的相关信息。 从基站提供诸如功率平均周期和采样间隔的第一和第二控制参数以控制增益的测量。 接口可以是数字的,并且提供反馈包括定义与MCPA相关联的100%负载水平并反馈与测量的增益水平成比例的信息。 间隔参数可以对应于同步间隔,异步,时隙间隔或不规则间隔。 一个MCPA可以使用多个接口进一步支持多个基站。 可以通过维持与控制信道相关联的功率电平来维持线性发射功率,并且可以根据优先级对自主调整的第二功率电平进行优先级调整。 为了提高质量,将较高优先级分配给相对低功率的剩余信号。 或者,可以在从基站到MCPA的接口上接收优先级,并且基于接收到的优先级来调整一个或多个第二功率电平,可以维持控制信道功率电平。