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Minh-Quang Nguyen minh-quang.nguyen at nutaq.comHi All, We have noticed that the PCU sends invalid block number to L1 in DSP leading to unexpected message warning in DSP "GsmL1_PhDataReq(1) : Unexpected burst (Invalid blockNumber) [2!=1, SAPI 21-21]]". After an investigation, we observe that the 'pcu_rx_rts_req' function in pcu_l1_if.cpp receives invalid block number from BTS. Looking at the BTS side, the calculation of L1SAP_FN2PTCCHBLOCK defined as '#define L1SAP_FN2PTCCHBLOCK(fn) ((fn / 52) & 7)' does not seem to be valid for expected PTCCH block numbers B0, B1,B2,B3 defined in Table 6 in TS 05.02 version 8.11.0. What do you think about re-define the calculation of the L1SAP_FN2PTCCHBLOCK? Regards, Minh-Quang Nguyen Concepteur logiciel | Software designer GSM/Network T. 418 914-7484 x2296 | 1 855 914-7484 | F. 418 914-9477 2150, Cyrille-Duquet, Québec (Québec) G1N 2G3 CANADA minh-quang.nguyen at nutaq.com <mailto:minh-quang.nguyen at nutaq.com> www.nutaq.com <http://www.nutaq.com/> QUEBEC MONTREAL NEW YORK <http://www.nutaq.com/signature/nutaq_q_m_ny.jpg> Facebook <http://www.facebook.com/pages/Nutaq-Innovation/351864938229900> Twitter <https://twitter.com/NutaqInnovation> LinkedIn <http://www.linkedin.com/company/Nutaq> YouTube <http://www.youtube.com/NutaqInnovation> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-net-gprs/attachments/20160502/09836164/attachment.htm>