Most viewed questions under tag phy

+4 votes

1 answer

LTE: is there any difference between resource block (RB) and Physical Resource Block (PRB) ?

posted Aug 16, 2014 by Mohammad Alsharif

+4 votes

2 answers

LTE: Difference between closed loop MIMO and open loop MIMO ?

posted Nov 5, 2013 by Ganesh Kumar

+2 votes

1 answer

What is the relationship between eNodeB,Cell and Sector ?

posted Mar 18, 2015 by Kishore Kumar Ponukumati

+4 votes

2 answers

what is the use of Extended cyclic prefix in lte

posted Jan 8, 2014 by Sandeep

+4 votes

2 answers

LTE: What is the basic difference Resource Allocation type 0 and 1 ?

posted Oct 31, 2013 by Neeraj Mishra

+4 votes

2 answers

LTE: What is sampling frequency and use of it ?

posted Nov 2, 2013 by Vikram Singh

+7 votes

3 answers

LTE: Difference between Adaptive and non-adaptive HARQ ?

posted Dec 6, 2013 by Vimal Kumar Mishra

+3 votes

1 answer

LTE: Difference between the cyclic prefix and extended cyclic prefix ?

posted Apr 30, 2014 by Ganesh Kumar

+6 votes

1 answer

LTE: Difference between virtual and physical resource allocation schemes ?

posted Oct 31, 2013 by Neeraj Mishra

+2 votes

1 answer

LTE: How HARQ with soft combining works ?

posted Nov 8, 2013 by Ganesh Kumar

+7 votes

3 answers

LTE:Why is the Cyclic Prefix (CP) needed?

posted Oct 30, 2013 by Ganesh Kumar

+1 vote

1 answer

In case of 4x4 MIMO, how many reference signals are there in an RB?

posted Dec 10, 2014 by Sridharan P

+7 votes

1 answer

LTE: Difference between synchronous and asynchronous harq ?

posted Dec 6, 2013 by Vimal Kumar Mishra

+6 votes

3 answers

LTE: How an UE get to know cell is running on MIMO mode or not ?

posted Feb 5, 2014 by Harshita

+3 votes

1 answer

What does the range of Reference Signal Received Power (RSRP) in LTE and How it is calculated ?

posted Sep 5, 2015 by Neeraj Mishra

+4 votes

1 answer

How does the EnodeB know if a UE supports carrier aggregation

posted Nov 8, 2013 by anonymous

+1 vote

1 answer

LTE: What are the differences between Reference signal and synchronization signal ?

posted Jun 10, 2014 by Neelam

+7 votes

1 answer

LTE: What are the factors derive subcarrier spacing 15KHz ?

posted Nov 10, 2013 by Vimal Kumar Mishra

+4 votes

1 answer

LTE: Why does uplink support only resource allocation type 2 ?

posted Nov 7, 2013 by Vikram Singh

0 votes

1 answer

LTE: What all MCS indexes can be used for the configuration of PMCH ?

posted Oct 22, 2016 by Rupam

+3 votes

1 answer

LTE: Does the eNodeB inform UE to use a specific MCS for the allocated resource in PUSCH ?

posted Oct 13, 2016 by Harshita

+1 vote

1 answer

What is the length of preamble sequence in bits and how many RB's are required to send?

posted Dec 11, 2014 by Sridharan P

+1 vote

1 answer

What is the minimum length of cyclic prefix in OFDM systems

posted Feb 29, 2016 by Shyam Narayan

+1 vote

2 answers

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

posted May 27, 2017 by anonymous

+1 vote

2 answers

What is the concept of code block in LTE-Phy layer?

posted Jun 12, 2014 by Karan Joglekar

+3 votes

1 answer

How PCI selection is done for a lte cell ?

posted Mar 21, 2015 by Harshita

+1 vote

1 answer

LTE: What is the use of PUCCH de-modulation reference signal (DMRS) which is transmitted along with PUCCH resources ?

posted Aug 30, 2016 by Harshita

0 votes

1 answer

LTE-A: Does the radio link failure applicable for secondary cell ?

posted Jan 8, 2016 by Harshita

+1 vote

1 answer

How UE PHY LAYER performs measurements in LTE?

posted Sep 9, 2016 by Gnanendra Reddy

+1 vote

1 answer

what it the functionality of RSSI in LTE?

posted Oct 6, 2013 by Neeraj Mishra

+7 votes

1 answer

LTE: How Beam forming works when it is needed and possible variations if possible ?

posted Oct 29, 2013 by Vikram Singh

+3 votes

1 answer

Difference between dBm and dB ?

posted Apr 6, 2014 by Neeraj Mishra

+6 votes

1 answer

LTE: How PCI help out to find out the reference signal location ?

posted Feb 4, 2014 by Harshita

+5 votes

1 answer

Why does lte support only 64 preamble sequences ?

posted Nov 5, 2014 by Neeraj Mishra

+1 vote

2 answers

LTE: On what basis either dB or dBm is considered as a measurement unit ?

posted Aug 9, 2016 by Ganesh

0 votes

2 answers

LTE: How many minimum RBs are required to transmit master information block ?

posted Aug 24, 2016 by Harshita

+3 votes

1 answer

LTE: Why does LTE support only up to 64 QAM ?

posted May 3, 2014 by Neeraj Mishra

+2 votes

1 answer

What is the content of the cyclic prefix ?

posted Dec 4, 2014 by Sridharan P

+4 votes

0 answers

LTE: How PCI should be selected for different neighboring cells (having same frequency) to avoid interference ?

posted Sep 30, 2015 by Vimal Kumar Mishra

+3 votes

0 answers

LTE: How does cell selection procedure work and what are all parameters considered for during this procedure ?

posted Feb 7, 2016 by Vikram Singh

+2 votes

1 answer

LTE: How an UE come to know about number of transmit antennas supported at eNodeB ?

posted Aug 27, 2016 by Ganesh

+1 vote

1 answer

LTE: How does MIMO works ?

posted Jun 16, 2014 by Ganesh

+1 vote

0 answers

What is layer mapping in LTE?

posted Sep 28, 2017 by Charan Shah

+2 votes

1 answer

LTE: What is Ultra Extended CP and use of it ?

posted May 1, 2014 by Harshita

+1 vote

1 answer

LTE: On what basis, a UE selects preamble sequence either from group A or B ?

posted Aug 27, 2016 by Ganesh

+9 votes

1 answer

How the concatenation and segmentation works in Physical Downlink Shared Channel (PDSCH) processing?

posted Mar 26, 2014 by Hiteshwar Thakur

+2 votes

0 answers

How many Maximum bits are there for PUCCH of format 1/1a/1b and 2/2a/2b each and they are spread in how many symbols?

posted Dec 15, 2014 by Sridharan P

+1 vote

0 answers

How many users PDCCH can be multiplexed for format 1 and format 2 respectively on the same physical resource?

posted Dec 15, 2014 by Sridharan P

+1 vote

1 answer

LTE: What parameters derive number of RBs or sub carriers used PUCCH resources in a subframe ?

posted Aug 30, 2016 by Harshita

0 votes

1 answer

LTE: What parameter gets impacted when sub-carrier spacing is changed in LTE ?

posted Oct 20, 2016 by Rupam