Sleeping cell observed with ZTE SGSN This topic has 0 replies, 1 voice, and was last updated 9 years, 9 months ago by Shail. Viewing 1 post (of 1 total) Author Posts 7th March 2013 at 05:57 #68906 ShailGuest The IMMIDIATE_ASS_REJ are increased with ZTE SGSN ver4. The PCU2 is leading to sleeping cell. The DSP are not behaving normal and found overloaded at PCU2. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.