Here is a detailed post from SunDot Communications (posted on the FB Baicells Operator Support Group on Dec. 11th) about how to make your Baicells in eNB connect to a Telrad EPC. Interesting note about throughput at the last bit of this explanation. Thank you so much for this!
This is what we changed in the Baicell ENB to connect to our Telrad EPC:
Under the BTS Settings:
- Change the MME IP to the IP address of the the EPC MME.
- Change the PLMN to match the Telrad EPC PLMNID.
- Change the TAC entry to match the Telrad MMC.
Under the LTE Setting, LGW Settings we turned LGW off, may not be neccessary but we wanted to assign our own IP addressing on the UE’s.
Under Network settings, IPsec Settings we disabled IPSec Status.
Under Network settings, Interfaces - WAN we changed the following:
- IPv4 address to an address on the MME network
- IPv4 netmask to the subnet mask of the MME network
Under Network Settings ,Interfaces, we selected Add VLAN INTERFACE. This we did to add a managment VLAN for our Baicell EnB on our management network.
- Provide a name for the VLAN Name entry we used MGMT.
- For VLAN Protocol we chose STATIC
- VLAN ID add the VLAN you wish to use.
Under Network Settings,Interfaces -MGMT we added and IP address to manage the Baicell ENB.
- Set Protocol to Static
- IPv4 Address set to an address on your management network
- IPv4 netmask set to the subnet mask of you management network
- IPv4 gateway, set to the management network IP of your router
- DNS, set your DNS server IP’s
We setup the Biacell EnB WAN connection to a Netonix switch the MGMT interface a Tagged and the MME as untagged on the MME VLAN the Terad EPC is on.
On the Telrad EPC we are running 0606.01004 software.
Finally we tested the Telrad 8000 and 7000 UE’s and the Biacell CPE for connection to the Baicells EnB. Every UE connected. For the UE SIMM’s we used Telrad SIMM’s. Speedtests were around 60-65Mbit on the UE’s on a 20 MHz channel. This was not as good as the 75-85Mbit we have seen using the Baicells EPC. We have not investigated to reason for the difference.