ZyXEL Communications MAX-306, Руководство пользователя, Страница: 255 / 405

Chapter 21 The Status Screen
User’s Guide
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Cell ID A base station’s coverage area can be divided into multiple cells. This
field shows the identification number of the cell in which the WiMAX
Device is connected.
Frequency This field displays the radio frequency of the WiMAX Device’s wireless
connection to a base station.
MAC address This field displays the Media Access Control address of the WiMAX
Device. Every network device has a unique MAC address which
identifies it across the network.
WiMAX State This field displays the status of the WiMAX Device’s current connection.
• INIT: the WiMAX Device is starting up.
• DL_SYN: The WiMAX Device is unable to connect to a base station.
• RANGING: the WiMAX Device and the base station are transmitting
and receiving information about the distance between them.
Ranging allows the WiMAX Device to use a lower transmission power
level when communicating with a nearby base station, and a higher
transmission power level when communicating with a distant base
station.
• CAP_NEGO: the WiMAX Device and the base station are exchanging
information about their capabilities.
• AUTH: the WiMAX Device and the base station are exchanging
security information.
• REGIST: the WiMAX Device is registering with a RADIUS server.
• OPERATIONAL: the WiMAX Device has successfully registered with
the base station. Traffic can now flow between the WiMAX Device
and the base station.
• IDLE: the WiMAX Device is in power saving mode, but can connect
when a base station alerts it that there is traffic waiting.
Bandwidth This field shows the size of the bandwidth step the WiMAX Device uses
to connect to a base station in megahertz (MHz).
CINR mean This field shows the average Carrier to Interference plus Noise Ratio of
the current connection. This value is an indication of overall radio signal
quality. A higher value indicates a higher signal quality, and a lower
value indicates a lower signal quality.
CINR deviation This field shows the amount of change in the CINR level. This value is
an indication of radio signal stability. A lower number indicates a more
stable signal, and a higher number indicates a less stable signal.
RSSI This field shows the Received Signal Strength Indication. This value is a
measurement of overall radio signal strength. A higher RSSI level
indicates a stronger signal, and a lower RSSI level indicates a weaker
signal.
A strong signal does not necessarily indicate a good signal: a strong
signal may have a low signal-to-noise ratio (SNR).
UL Data Rate This field shows the number of data packets uploaded from the WiMAX
Device to the base station each second.
DL Data Rate This field shows the number of data packets downloaded to the WiMAX
Device from the base station each second.
PER This field shows the Packet Error Rate. The PER is the percentage of
data packets transmitted across the network but not successfully
received.
Table 113 Status (continued)
LABEL DESCRIPTION