ZyXEL LTE7485-S905 User Guide - Page 59
WiFi Settings, LABEL, DESCRIPTION
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Chapter 5 Connection Status Table 9 Cellular Info: Detailed Information LABEL DESCRIPTION RAC This displays the RAC (Routing Area Code), which is used in mobile network "packet domain service" (PS) to identify a routing area within a location area. In a mobile network, it uses LAC (Location Area Code) to identify the geographical location for the old 3G voice only service, and use RAC to identify the location of data service like HSDPA or LTE. The RAC of the connected UTRAN cell is as defined in SIB 1 [3GPP-TS.25.331]. The concatenation of PLMN ID (MCC+MNC), LAC, and RAC uniquely identifies the RAI (Routing Area ID) [3GPPTS.23.003]. BSIC This parameter is for UMTS or GPRS. The value is '0' (zero) if the Current Access Technology is not UMTS or GPRS. The value is 'N/A' if there is no network connection. The Base Station Identity Code (BSIC), which is a code used in GSM to uniquely identify a base station. SINR CQI MCS RI PMI This parameter is for GPRS only. The value is '0' (zero) if the Current Access Technology is not GPRS. The value is 'N/A' if there is no network connection. This displays the Signal to Interference plus Noise Ratio (SINR) in dB. This is also a measure of signal quality and used by the UE (User Equipment) to calculate the Channel Quality Indicator (CQI) that it reports to the network. A negative value means more noise than signal. This displays the Channel Quality Indicator (CQI). It is an indicator carrying the information on how good/bad the communication channel quality is. MCS stands for modulation coding scheme. The base station selects MCS based on current radio conditions. The higher the MCS the more bits can be transmitted per time unit. This displays the Rank Indication, one of the control information that a UE will report to eNodeB (Evolved Node-B) on either PUCCH (Physical Uplink Control Channel) or PUSCH (Physical Uplink Shared Channel) based on uplink scheduling. This displays the Precoding Matrix Indicator (PMI). PMI is for transmission modes 4 (closed loop spatial multiplexing), 5 (multi-user MIMO), and 6 (closed loop spatial multiplexing using a single layer). PMI determines how cellular data are encoded for the antennas to improve downlink rate. 5.1.4 WiFi Settings Use this screen to enable or disable the main wireless network. When the switch turns blue ( ), the function is enabled. Otherwise, it's not. You can use this screen or the QR code on the upper right corner to check the SSIDs (WiFi network name) and passwords of the main wireless networks. If you want to show or hide your WiFi passwords, click the Eye icon ( ). Figure 33 WiFi Settings Click the Arrow icon ( ) to configure the SSIDs and/or passwords for your main wireless networks. Click the Eye icon ( ) to display the characters as you enter the WiFi Password. LTE Series User's Guide 59