(Actually you don't need to figure out this, your WLAN device will figure out :). If you have a 802.11ac WLAN Card (device), the first thing you have to do is to figure out the Access Point (AP) around the device support 802.11ac. Transmission BeamForming (based on Explicit CSI).4 x 4 : 4 Data Streams or 8 x 8 : 8 Data Streams Max.802.11ac has been evolved as two Waves (at least as of now, Aug 2016) as listed below. In 802.11ac, they call them as Wave (e.g, Wave 1, Wave 2 etc). Some technology they call them as 'Phase' (e.g, Phase 1, Phase 2 etc). In some technology, they call these chunk as 'Stage' (like Stage 1, Stage 2 etc) and in A common practice in this case is to split those requirement/wishlist into multiple chunks and attack them chunk by chunk. However, we don't want to wait forever until everything is ready all at once. No new technology can be invented overnight. The first key word (fundamental characteristics) of 802.11 ac is This would give user the experience of quicker response time. In 802.11ac, multiple UEs can communicate with Access Point at the same time.Ĩ02.11ac Physical frame length generally shorter than 11n. I would recommend you to read through this document at least once if you have time)Ĩ02.11ac can achieve max 100% gain from thisĨ02.11ac can achieve around 33% gain from thisĨ02.11ac can achieve 117 or 333% gain from this (NOTE : I got most of these information from Ref. Just to give you more practical insight on this motivation, I would compare 802.11n (the most advanced technology before 802.11ac) and 802.11ac with the respect t the features/technologies listed above.
With the list in mind, if you try to correlate each of these technologies to each items of specification of 802.11ac, it will be much easier to get the big picture or motivation of those specification. Some of the technologies for this evolution can be listed as follows Then what is the technical strategy to achieve this high throughput ? Overall strategy is also same as other technology (If you have seen the evolution process of celluar technology (e.g, WCDMA -> HSPA -> DC HSPA or LTE -> LTE MIMO -> Carrier Aggregation etc), you will easily understand the strategy. I am pretty sure that you will see another technology targeted for even higher throughput than 802.11ac (We are already hearing of 802.11ad).
#WHAT IS PREAMBLE MODE WIFI MAC#
Most of these main characteristics would lead to some addition / modification of PLDC and MAC frame structure. Following is the list of the main characteristics of 802.11ac.
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