23Parameter Name Description1 = DL:UL is 2:2 transmission ratio2 = DL:UL is 3:1 transmission ratio (default)Refer to the BaiTip on this setting:https://community.na.baicells.com/t/baitip-of-the-day-december-14th-2016-subframes-and-special-subframes/163specialSubframePatterns Either 5 or 7. This is a standard LTE setting that pertains tosynchronization of downlink and uplink timing. The guard periodbetween switching from DL to UL or UL to DL determines the maximumsupportable cell size. The guard period has to be large enough to coverthe propagation delay of DL interferers. The default setting is 7.Refer to the BaiTip on this setting:https://community.na.baicells.com/t/baitip-of-the-day-december-14th-2016-subframes-and-special-subframes/163s1ConnectionMode Number of S1AP signaling end points with which the eNBattempts to establish a connection. If the signaling end points inthe s1SigLinkServerList contain at least one MME, thes1ConnectionMode should be set to One. Otherwise, thes1ConnectionMode can be set to one or all.Options:• One• AllMME IP The Internet Protocol (IP) address of the Mobility ManagementEntity (MME). The MME is responsible for initiating paging andauthentication of mobile devices. There may be more than oneMME in the network.5.2 Network5.2.1 WANThe WAN interface is a communications interface to external devices in the network, such asthe Network Management System (NMS), a gateway (GW), and one or more MMEs. The WANinterface supports multiple VLANs to connect with different devices. Go to Network > WAN toconfigure up to 6 WAN interfaces using VLANs, depending on which software version you arerunning. The 6 VLAN configurations are labeled WAN1, WAN2, WAN3, WAN4, WAN5, andWAN6. Refer to Figure 5-3 and Table 5-2.
