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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>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]]”.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>After an investigation, we observe that the ‘pcu_rx_rts_req’ function in pcu_l1_if.cpp receives invalid block number from BTS.<o:p></o:p></p><p class=MsoNormal>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.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What do you think about re-define the calculation of the L1SAP_FN2PTCCHBLOCK? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'>Minh-Quang Nguyen<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'>Concepteur logiciel | Software designer GSM/Network<br><br><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'>T. 418 914-7484 x2296 | 1 855 914-7484 | F. 418 914-9477<br>2150, Cyrille-Duquet, Québec (Québec) G1N 2G3 CANADA<br><br><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><a href="mailto:minh-quang.nguyen@nutaq.com"><span style='color:blue'>minh-quang.nguyen@nutaq.com</span></a><br><a href="http://www.nutaq.com/"><span style='color:blue'>www.nutaq.com</span></a> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'> <a href="http://www.nutaq.com/signature/nutaq_q_m_ny.jpg"><span style='color:blue'>QUEBEC MONTREAL NEW YORK</span></a><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'><a href="http://www.facebook.com/pages/Nutaq-Innovation/351864938229900"><span style='color:blue'>Facebook</span></a> <a href="https://twitter.com/NutaqInnovation"><span style='color:blue'>Twitter</span></a> <a href="http://www.linkedin.com/company/Nutaq"><span style='color:blue'>LinkedIn</span></a> <a href="http://www.youtube.com/NutaqInnovation"><span style='color:blue'>YouTube</span></a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>