BatteryLifeExtension 是什么模式？哪里有详细介绍？

在协调器建立网络的时候，调用函数

ZStatus_t NLME_NetworkFormationRequest( uint16 PanId,

                                                                                  uint32 ScanChannels,

                                                                                  byte ScanDuration,

                                                                                 byte BeaconOrder,

                                                                                 byte SuperframeOrder,

                                                                                 byte BatteryLifeExtension );

z-stack API对最后一个参数BatteryLifeExtention的介绍：

If this value is TRUE, the NWK layer will request that the ZigBee coordinator is started supporting battery life extension mode ( see [R3] for details on this mode ).

但是请问，这个[R3] datasheet在哪啊？BatteryLifeExtention模式到底起什么作用了？我测了一下功耗，当设置为true时，功耗也没降低啊。