Recent posts under tag lte

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What is meant by protocol discriminator.

posted Jun 1, 2017 by Uday Kiran

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How power control happen in LTE?

posted May 31, 2017 by anonymous

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LTE: difference in throughput in TM mode 3 and TM mode 4 in LTE?

posted May 31, 2017 by anonymous

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How TM mode switching is happen at eNB and on what basis eNB change the transmission mode (TM) in LTE?

posted May 31, 2017 by anonymous

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LTE: what is difference between TM mode 3 and TM mode 4 in LTE and how eNB decide which TM mode to use?

posted May 31, 2017 by anonymous

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In LTE FDD MODE if uplink and downlink band width are different then how the UE will know about that ?

posted May 31, 2017 by anonymous

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Why do we need segmentation or concatenation for the RLC re-transmission?

posted May 30, 2017 by Jaganathan

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What is multiplexing in MAC?

posted May 30, 2017 by Ankit Mishra

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How RV works in HARQ?If we change RV information how it affects the transmission buffer at sender?

posted May 29, 2017 by Himani

+1 vote

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When UE will discard HARQ buffer data (receiver side) ?

posted May 29, 2017 by Himani

+1 vote

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When UE will discard PDSCH resource allocation information?is there any scenario?

posted May 28, 2017 by Gnanendra Reddy

+1 vote

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why QPSK modulation scheme is used for all control channels in LTE ?

posted May 27, 2017 by anonymous

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Why broadcast messages are carried in TM mode ?

posted May 26, 2017 by Akhilesh

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WHy HARQ re-ordering in is RLC?But HARQ functionality is done by MAC?

posted May 26, 2017 by Himani

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Why in 4G the EPC session is considered as "always on", what does it mean and how is it different with 2G & 3G?

posted May 26, 2017 by Hana Pamora

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Handover Failure in LTE

posted May 24, 2017 by Yeshwanth

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What is DELTA_PREAMBLE in LTE?Why exactly it is needed in LTE?

posted May 24, 2017 by Karan Patel

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What is code rate in LTE?

posted May 24, 2017 by Karan Patel

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Attach request without PDN connectivity request?Is this scenarion is possible in LTE?

posted May 23, 2017 by Himani

+2 votes

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What is SIP signalling in QCI table?Why it is needed in LTE?

posted May 22, 2017 by Dheerendra

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What is the difference between HSS and SPR? Why SPR is needed when HSS does the same job?

posted May 22, 2017 by Dheerendra

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LTE:what is the advantage and disadvantage of setting 12 bits instead of 7 bits? PDCP SN

posted May 21, 2017 by anonymous

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Why UL data is not scrambled with RNTI? Why only DL data is scrambled with RNTI?

posted May 18, 2017 by Himani

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How to decide HARQ group & sequence from starting PRB? can anyone elaborate it clearly?

posted May 18, 2017 by Dheerendra

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What is the exact use of Physical cell id (PCI) over the cell id ?

posted May 17, 2017 by Bharat Kumar

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What is PDCP in-sequence delivery & duplicate detection at re-establishment?

posted May 17, 2017 by Bharat Kumar

+3 votes

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When Enb will send rrc connection reject mesage to UE and What are the scenarios?

posted May 17, 2017 by Gnanendra Reddy

+2 votes

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On what basis priority (ARP) is assigned to a bearer during call admission control ?

posted May 16, 2017 by Bharat Kumar

+1 vote

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What is TFT?Is it an Id or is it derived from the IP header of the packet(i.e. type of service field)?

posted May 16, 2017 by Bharat Kumar

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MME behavior when s1 Setup req is received twice from same eNB

posted May 16, 2017 by Sumit Deshmukh

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Why RLCID is needed?

posted May 15, 2017 by Dheerendra

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Why paging priority is needed? when it will be usefull in LTE?

posted May 15, 2017 by Akhilesh

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What is maxHARQ-msg3Tx IE in RACH config ?

posted May 15, 2017 by Gnanendra Reddy

+3 votes

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How we know about PDSCH location from PDCCH?

posted May 14, 2017 by Gnanendra Reddy

+2 votes

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Can someone please explain the how emergency attach will work ? (call flow)

posted May 12, 2017 by Dheerendra

+1 vote

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Load balancing in LTE ?

posted May 12, 2017 by Shilpy Agrawal

+1 vote

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How much load can a single eNB can handle?

posted May 12, 2017 by Shilpy Agrawal

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How eNB will take the decision to perform Cell change order and what is the scenario?

posted May 11, 2017 by Akhilesh

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What happens when UE in DRX idle mode?

posted May 11, 2017 by Akhilesh

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How end to end QoS in managed in LTE?

posted May 11, 2017 by Hana Pamora

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Difference between LTE Physical throughput, MAC throughput and RLC Throughput

posted May 10, 2017 by Shyam Singh Pal

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Does UE knows PDCCH format (1,2,3,4) before doing blind decoding?

posted May 8, 2017 by Akhilesh

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why CSRS is not only in center 72 subcarriers?

posted May 8, 2017 by Akhilesh

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What is RAN slicing and how it is beneficial compare to traditional network architecture ?

posted May 7, 2017 by Vikram Singh

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How Roaming charges and procedure will happen in LTE?

posted May 5, 2017 by Dheerendra

+2 votes

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How persistence is Home location register data?

posted May 4, 2017 by Dheerendra

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What is the meaning of data connection in LTE architecture?

posted May 4, 2017 by Aahan Mozumdar

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LTE: What is the meaning of sound reference signal?

posted May 3, 2017 by Himani

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What type of HARQ type is mostly used in LTE?

posted May 3, 2017 by Himani

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Why separate channels are required for HARQ?

posted May 2, 2017 by Poonam