TI中文支持网进一步讲，在功耗和传输距离之间存在什么样的约束？有没有权威的文档推荐？谢谢！
Yue TANG：
我理解的是，发射功率和传输距离是成正比的，每大6个dbm距离提高一倍，同时功耗会变大。而传输距离不仅仅跟发射功率有关，参考如下文档。
http://www.ti.com/lit/ml/swrp082/swrp082.pdf
CC2540有4dbm输出
CC2541有0dbm.
如果对距离有进一步要求，可考虑增加CC2590/1前端
功耗是跟你的工作方式有关的，可参考
http://www.deyisupport.com/question_answer/f/45/t/13244.aspx
文档中的如下内容
BLE Link Layer: Connection Parameters Tradeoffs•Short connection interval:–Higher power consumption for both devices–Higher throughput in both directions–Shorter wait for data to be sent in either direction•Long connection interval:–Lower power consumption for both devices–Lower throughput in both directions–Longer wait for data to be sent in either direction•Low / Zero slave latency:–Higher power consumption for peripheral–Peripheral receives data sent from central device sooner•High slave latency:–Lower power consumption for peripheral during periods when it has no data to send to central device–Peripheral may not immediately receive data being sent from central device
