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A novel time-domain sleep mode design for energy-efficient LTE

机译:节能LTE的新型时域睡眠模式设计

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This paper describes a time-domain approach for base station transmission sleep modes, taking the Long Term Evolution (LTE) system as a specific example. The idea of this design is to enable the base station to reduce RF energy consumption in low traffic conditions, while still properly supporting active user connections. By switching off traffic during a certain time period and delivering all user information with fewer transmissions under the same rate targets, the energy consumption can be reduced since the control signalling during non-active time is gated off. Taking the example of single user system for simplification, the optimum on-off time with associated power allocation are derived, which enables the energy consumption of the base station to scale with traffic loading. Compared with the corresponding non-sleep mode, this can achieve an up to 90% energy reduction in low traffic conditions.
机译:本文以长期演进(LTE)系统为例,介绍了一种针对基站传输睡眠模式的时域方法。这种设计的思想是使基站能够在低流量条件下降低RF能耗,同时仍能正确支持活动的用户连接。通过在特定时间段内关闭流量并在相同速率目标下以较少的传输量传递所有用户信息,由于可以关闭非活动时间的控制信令,因此可以减少能耗。以简化的单用户系统为例,推导了具有相关功率分配的最佳开-关时间,这使得基站的能量消耗能够随着业务负载而缩放。与相应的非睡眠模式相比,这可以在低交通状况下实现多达90%的能耗降低。

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