G
LOSSARY
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SOFDMA
Scalable Orthogonal Frequency Division Multiple Access. The air interface
defined for mobile WiMAX. SOFDMA is a multiple access method that allows
simultaneous transmissions to and from several users, employing a
subchannel structure that scales with bandwidth.
S
ERVICE
P
ROVIDER
See
Internet Service Provider
.
SSID
Service Set Identifier. A name that is sent in packets over a Wi-Fi network,
which functions as a password for clients connecting to the network. The
SSID differentiates one Wi-Fi network from another.
SNTP
Simple Network Time Protocol. SNTP allows a device to set its internal
clock based on periodic updates from a Network Time Protocol (NTP)
server. Updates can be requested from a specific NTP server, or can be
received via broadcasts sent by NTP servers.
SIM
Subscriber Identity Module. A standard for a small removable integrated
circuit card that securely stores information used to identify a mobile
wireless subscriber.
S
UBSCRIBER
S
TATION
A general term for a customer’s WIMAX terminal equipment that provides
connectivity with a base station.
TCP/IP
Transmission Control Protocol/Internet Protocol. Protocol suite that
includes TCP as the primary transport protocol, and IP as the network layer
protocol.
TLS
Transport Layer Security. An standard defined in RFC 5216, EAP-TLS is an
authentication protocol that provides strong security through the use of
client-side certificates.
TTLS
Tunneled Transport Layer Security. EAP-TTLS is a protocol extension of
EAP-TLS. The authentication server is authenticated to the client using its
Certification Authority certificate, this establishes a secure “tunnel”
through which the client is then authenticated.
URL
Uniform Resource Locator. An easy-to-read character string that is used to
represent a resource available on the Internet. For example, “http://
www.url-example.com/.”
UTP
Unshielded twisted-pair cable.