Section: 4.7.2.11 Interaction between power saving mode and extended idle mode DRX cycle
Content: The MS can request the use of both PSM and eDRX during an attach or routing area update procedure but it is up to the network to decide to enable none, one of them or both (see 3GPP TS 23.682[ Architecture enhancements to facilitate communications with packet data networks and applications ]  [133A] and 3GPP TS 23.060[ General Packet Radio Service (GPRS); Service description; Stage 2 ]  [74]). If the network accepts the use of both PSM (see subclause 4.7.2.9) and eDRX (see subclause 4.7.2.10), the extended DRX parameters IE provided to the MS should allow for multiple paging occasions before the active timer expires.