by default access points send beacon frames every how many ms
Beacon frame Infrastructure network access points send beacons at a defined interval, which is often set to a default 100ms. In the case of an ad hoc network where there are no access points, a peer station is responsible for sending the beacon. After an ad hoc station receives a beacon frame from a peer, it waits a random amount of time. After that random timeout has elapsed, it will send a beacon frame unless another station has already sent one. In this way, the responsibility of sending beacon frames is rotated amongst all the peers in the ad hoc network, while ensuring that beacons will always be sent.
Apple Maps In 2016, Apple Maps opened a new development center and it was updated for watchOS and iOS. The application was improved when watchOS 2.2 came out in March 2016. Apple Maps was renewed in the new version of the operating system and received a number of new features, including "Nearby" which had previously been exclusive to iOS.[39] Four months later, Apple CEO Tim Cook inaugurated a new office in partnership with IT company RMSI, Noida, at the WaveRock campus in the Indian city Hyderabad. The development center focusses on the development of Apple Maps and employs 4,000 people.[40][41] According to ZDNet, the 250,000 square feet (23,000 square metres) office costed US$25 million.[42] In September, iOS 10 was released. The update of the Apple's mobile operating system was accompanied by a new design of Apple Maps. Moreover, the application was opened up to developers and gained a few features: it makes suggestions for places to go based on earlier usage of the app, it can remember the location where the user parked their vehicle, it allows a user to filter search suggestions, and the turn-by-turn navigation was improved.[43][44] The navigation automatically zooms in and out, shows traffic ahead, and allows users to search for points of interests along the route. These features are available for CarPlay as well.[43]