Unanswerd questions under tag mac

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5g ssb numerology spec reference

posted May 2, 2021 by Pdk

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Why repetition coding is used in UCI format only in NR?

posted Oct 20, 2020 by Himani

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How Does 5G CN handles multiple QOS flow in single PDU Session?

posted Oct 15, 2020 by Akhilesh

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Does UE starts Inactivity timer if it receives UL grant with NDI not toggled?

posted Sep 15, 2020 by Ankit Mishra

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RACH initiation in 5g NR

posted Aug 19, 2020 by Sudhanshu Kumar Srivastav

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What is Spurious emission in UE transmission?

posted Aug 19, 2020 by Charan Shah

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What is the use of TB scaling in PDCCH message?

posted Aug 18, 2020 by Dheerendra

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What will be the DRX state after RACH if UE initiates Rach for TA expiry?

posted Aug 11, 2020 by Sakshi Rai

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How many periodic NZP CSI-RS resources can be configured per slot in NR?

posted Aug 2, 2020 by Ankit Mishra

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What is constellation mapping in Modulation order?

posted Jul 28, 2020 by Dheerendra

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How UE gets Number of layers and Antenna in gNB

posted Jun 15, 2020 by Bharat Kumar

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What is the use of SP CSI-RS / CSI-IM Resource Set Activation/Deactivation MAC CE?

posted Jun 11, 2020 by Bharat Kumar

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What is CBG (Code Block Group) based HARQ Re-Transmission?

posted Jun 8, 2020 by Jaganathan

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What is the reason for fall back to default BWP after inactive timer expiry?

posted May 25, 2020 by Jaganathan

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How to change Pcell to Scell and Scell to Pcell during Inactive mode mobility?

posted May 19, 2020 by Poonam

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Should Scell and Pcell have same SFN/RFN? What will be the impact of both are different?

posted May 19, 2020 by Dheerendra

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'What if UE misses the UL SPS release DCI and keeps sending the UL SPS data?

posted May 17, 2020 by Dheerendra

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What will be the impact on system if multiple UE initiating different preamble RACH in same SF again and again?

posted May 13, 2020 by Karan Patel

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What will be the RNTI value in RAR for Contention free HO RACH?

posted May 13, 2020 by Karan Patel

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Can we disable SPS Implicit release in UL?

posted May 11, 2020 by Himani

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What if Reestablishment triggered before Security context in Soruce cell?

posted May 11, 2020 by Jaganathan

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Any Prohibit condition for UE to block PHR MAC CE?

posted May 8, 2020 by Bharat Kumar

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Can we configure DRX ON duration and inactivity timer as same value?What will be the impact?

posted Apr 14, 2020 by Jaganathan

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What happens During CDRX eNB receive NACK but UE sent ACK?

posted Apr 7, 2020 by Jaganathan

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What should be the max HARQ transmission If TTI bundling is enabled?

posted Apr 3, 2020 by Jaganathan

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Can we support NSA with LTE UL only?

posted Feb 24, 2020 by Jaganathan

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What is the use of nomPDSCH-RS-EPRE-Offset in CQI configuration?

posted Feb 18, 2020 by Rohit Verma

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What is the use of N_cce in HARQ resource calculation?Does this required in PUCCH Format 3?

posted Feb 17, 2020 by Rohit Verma

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Does ENB forwards the packet during RLF?

posted Feb 6, 2020 by Ankit Mishra

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How contention resolution happens during RLF procedure?

posted Jan 29, 2020 by Jaganathan

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Which RNTI eNB uses while sending reestablishment/reject during RLF?

posted Jan 27, 2020 by Jaganathan

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How Re transmission are handled in TTI bundling?

posted Jan 24, 2020 by Dheerendra

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How a UE determines which DCI format to use to decode DCI?

posted Sep 24, 2019 by Debasis Mohapatra

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What RNTI UE uses while monitoring Beam failure rach response?

posted Aug 28, 2019 by Jaganathan

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Does UE monitor PDCCH if the active timer expires in middle of PDCCH occasion?

posted Aug 19, 2019 by Jaganathan

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What is HARQ bundling in NR?

posted Aug 14, 2019 by Jaganathan

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Why TTI bundling is not supported in RN ?

posted Aug 5, 2019 by Jaganathan

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Does MAC gets duplicate TB?

posted Aug 5, 2019 by Jaganathan

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5GNR: CORESET#0 CONFIGURATION

posted Jul 21, 2019 by Sudhanshu Kumar Srivastav

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What are all the supported RAT types in NR?

posted Jul 17, 2019 by Jaganathan

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what is non slot based scheduling in 5G?

posted Jul 11, 2019 by Jaganathan

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What is the state of UE if the RLC UM Max HARQ re transmission fails?

posted Jul 11, 2019 by Charan Shah

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Does UE gets data from SRB1 and SRB2 in a same SF?

posted Jun 17, 2019 by Sakshi Rai

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why SRB2 is implemented though ue have SRB 0,1 in LTE ?

posted Jun 14, 2019 by anonymous

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when UE ignores Timing Advance ?

posted Jun 4, 2019 by Sushant Bose

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Does Other UE knows, whether its a Contention Based or Non-Contention based procedure ?

posted Jun 4, 2019 by Sushant Bose

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Why there is no NDI in DCI1A for CRNTI?

posted May 14, 2019 by Akhilesh

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Is Logical channel prioritization confined for only three channels like CCCH,DCCH and BCCH?

posted May 9, 2019 by Manjula R

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What is the modulation scheme used in EPDCCH?

posted Apr 26, 2019 by Himani

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What is the priority in allocating CCE to an UE?

posted Apr 25, 2019 by Ankit Mishra