Differences

This shows you the differences between two versions of the page.

--- etc:users:jcmvbkbc:mesh-power [2010/02/24 23:41] – jcmvbkbc
+++ etc:users:jcmvbkbc:mesh-power [2016/08/08 20:53] (current) – ↷ Page moved from users:jcmvbkbc:mesh-power to etc:users:jcmvbkbc:mesh-power kel
@@ Line 1: / Line 1: @@
 ====== 802.11s mesh powersaving for linux ======
+===== Scope =====
+  * Implement non-realtime powersaving features of 802.11s draft:
+    * powersaving level indication;
+    * traffic buffering for sleeping peers;
+    * TIM/DTIM in beacons;
+    * peer service period;
+  * Provide powersaving level control on MSTA/peer link basis;
+  * Provide peer link control;
-===== Plan =====
+===== Approach =====
+Enhance current in-kernel 802.11s implementation:
+  * powersaving scheme proposed by 802.11s draft closely resemble AP-based scheme (traffic buffering/TIM/DTIM), so this code may be reused;
+  * powersaving level indication (both peer and non-peer)/mesh awake window attributes need to be added;
+  * wakeup for peer beacon reception may be implemented later, now it's enough to stay awake continuously and just calculate whether station would actually hear the frames that it receives;
+  * peer service period logic need to be added, it's a simple state machine;
-  * find out what's to be done
+Testing may be carried out with mac80211_hwsim driver.
-  * find out how analogous things are done
-  * do it
 ===== What's to be done =====
+  * MSTA power mode tracking (11C.13.3);
-  * MSTA power mode tracking;
+  * each peering power mode tracking (11C.13.4);
-  * each peering power mode tracking;
+  * TIM/DTIM in beacons (11C.13.5-6) -- ieee80211_beacon_get_tim;
-  * TIM/DTIM in beacons -- ieee80211_beacon_get_tim;
+  * mesh awake window (11C.13.7);
   * wake-up scheduling for peer beacons (optional);
   * ps-poll requests and responses (?);
-  * service period tracking;
+  * service period tracking (11C.13.10);
-  * frame buffering for peers in doze state;
+  * frame buffering for doze peers -- ieee80211_tx_h_multicast_ps_buf, ieee80211_tx_h_unicast_ps_buf;
+  * user interface controls -- like nl80211_set_power_save;