Hi 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@nutaq.com
www.nutaq.com
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