Handbook

Table Of Contents
ClearFill Star CDMA
1100187 Rev. 1.0
Page 35 of 152
The number of GES depends on the RRH quantity and can be affected by distance.
A good design is to place a GES in a central location within a group of RRHs (up to 11
RRHs, because one port is needed for the connection to the next GES).
This minimizes the distance to each RRH. It is essential that the Ethernet cable length of
100m (330ft) is not exceeded.
RRH Summing for Uplink:
A summing function is included in the RRH, it sums the UL data streams for data or voice of
up to 8 RRHs of the same GES. Beacon RRHs are not affected.
When all GES ports are connected with the maximum number of RRHs for a service, the
maximum number of summing RRHs for data or voice is 2.
A cascaded structure can support up to 8 summing RRHs per service or sector.
The next pages show examples for the system structure of GES and RRHs: