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MIMO tm=3/4 not worked

Open faratell opened this issue 9 months ago • 1 comments
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Hello. I have set up a 4G network using srsRAN_4G on a PC with an Intel(R) Core(TM) i7-7700K CPU running at 4.20GHz, along with a USRP B210 and Open5GS as the core network. My network has been tested with an Oyeitimes 4G SIM card and operates successfully across all bandwidths. However, when I configure nof_port=2 and set tm=3 or tm=4 while using a MIMO antenna, the SIM cards are unable to connect to the network (also for low BW). They show numerous PRACH attempts before disconnecting. For testing, I am using an Honor X9b phone. Disconnecting rnti=0x46. RACH: tti=3531, cc=0, pci=64, preamble=46, offset=43, temp_crnti=0x4a Disconnecting rnti=0x47. RACH: tti=3551, cc=0, pci=64, preamble=3, offset=43, temp_crnti=0x4b RACH: tti=3571, cc=0, pci=64, preamble=24, offset=43, temp_crnti=0x4c Disconnecting rnti=0x48. Disconnecting rnti=0x49. RACH: tti=3591, cc=0, pci=64, preamble=38, offset=43, temp_crnti=0x4d Disconnecting rnti=0x4a. RACH: tti=3611, cc=0, pci=64, preamble=41, offset=43, temp_crnti=0x4e Disconnecting rnti=0x4b. RACH: tti=3631, cc=0, pci=64, preamble=3, offset=43, temp_crnti=0x4f Disconnecting rnti=0x4c. RACH: tti=3651, cc=0, pci=64, preamble=4, offset=43, temp_crnti=0x50 RACH: tti=3671, cc=0, pci=64, preamble=44, offset=43, temp_crnti=0x51 Disconnecting rnti=0x4d. Disconnecting rnti=0x4e. RACH: tti=3691, cc=0, pci=64, preamble=28, offset=43, temp_crnti=0x52 Disconnecting rnti=0x4f. RACH: tti=3711, cc=0, pci=64, preamble=50, offset=43, temp_crnti=0x53 Disconnecting rnti=0x50. RACH: tti=3731, cc=0, pci=64, preamble=19, offset=43, temp_crnti=0x54 Disconnecting rnti=0x51. RACH: tti=3751, cc=0, pci=64, preamble=31, offset=43, temp_crnti=0x55 Disconnecting rnti=0x52. RACH: tti=3771, cc=0, pci=64, preamble=31, offset=43, temp_crnti=0x56 RACH: tti=3791, cc=0, pci=64, preamble=27, offset=43, temp_crnti=0x57

my full log is attached.

enb.txt

faratell avatar Feb 03 '25 08:02 faratell