Browse Definitions :
Definition

802.11u

802.11u is an amendment to the IEEE 802.11 WLAN standards that provides for connection to external networks using common wireless devices such as smartphones and tablet PCs.

An 802.11u-capable device can take advantage of Hot Spot 2.0, also called Wi-Fi Certified Passpoint, designed for public-access Wi-Fi. Hot Spot 2.0 enables cellular-like roaming among Wi-Fi networks and between Wi-Fi and cellular networks. If a subscriber is in range of at least one Wi-Fi network, the device will automatically select a network and connect to it. Other benefits include an enhanced data transfer rate (DTR), and service on demand. 

Other notable features of 802.11u include the transmission of pre-connection information to prospective users defining the type of network offered (private, free public, chargeable public, emergency, etc.) as well as the venue type (educational, residential, business, vehicular, etc.); roaming consortium information; the ability to receive messages from the Emergency Alert System (EAS); and the ability to contact emergency services when necessary. Network discovery and selection is facilitated by the Access Network Query Protocol (ANQP), which comprises elements defining the services offered by an access point.

This was last updated in June 2013
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • What is cybersecurity?

    Cybersecurity is the protection of internet-connected systems such as hardware, software and data from cyberthreats.

  • DOS (disk operating system)

    A DOS, or disk operating system, is an operating system that runs from a disk drive. The term can also refer to a particular ...

  • private key

    A private key, also known as a secret key, is a variable in cryptography that is used with an algorithm to encrypt and decrypt ...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • NOR flash memory

    NOR flash memory is one of two types of non-volatile storage technologies.

  • What is RAID 6?

    RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID ...

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

Close