Wireless Explained
Wireless Explained
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Search Space and CORESET configuration in 5G
This video provides an overview of Search Space and CORESET configuration in 5G. Also explains how PDDCH is scheduled within a CORESET, and the corresponding parameter structure.
▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Introduction
0:15 - PDCCH Scheduling in 4G
1:07 - PDCCH Scheduling in 5G
1:26 - PDCCH-Config for Dedicated Signals
4:03 - Additional Search Spaces
4:31 - Blind decoding of PDCCH by UE
5:12 - REG (Definition)
5:18 - CCE (Definition)
5:38 - Aggregation Level (Definition)
6:40 - Interleaving
6:48 - REG Bundle (Definition)
8:09 - PDCCH-Config for Common Signals
References:
[1] ETSI TS 138.211 Section 7.3.2.2
[2] Textbook “5G New Radio in Bullets” by Chris Johnson
[3] ShareTechNote: www.sharetechnote.com/html/5G/5G_ResourceAllocationUnit.html
[4] ShareTechNote (CORESET 0): www.sharetechnote.com/html/5G/5G_CommonSearchSpace_Type0_PDCCH.html
Music: Erik SATIE - Gymnopedies 1
Thanks: Venkatarao Gonuguntla, Revathy Narayanan
#5G, #WirelessCommunication, #CellularCommunication, #CORESET, #SearchSpace
มุมมอง: 9 744

วีดีโอ

PUCCH Formats in 5G
มุมมอง 6Kปีที่แล้ว
This video provides an overview of various PUCCH formats in 5G. PUCCH is used to convey information from UE to Base Station, such as Acknowledgement, Scheduling request, and Channel State Report. Based on the payload size and channel conditions, various PUCCH formats are used. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Introduction 0:13 - PUCCH contents 0:40 - Resource Allocation to PUCCH using...
5G Link Adaptation: Transport Block Size Computation
มุมมอง 3.9Kปีที่แล้ว
This video describes Transport Block size computation in 5G, from MCS and number of Resource Elements (REs) scheduled. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:05 - Problem Statement 2:41 - Step 1: CQI to MCS mapping 4:19 - Step 2: Compute Carrier Capacity 5:37 - Step 3: Decide Computation Procedure & Base Graph 7:04 - Step 4: Quantization Procedure 8:24 - Step 5: Computation of TB size References...
Introduction to RACH Procedure in 5G
มุมมอง 13Kปีที่แล้ว
This video explains how a UE establishes its initial connection using RACH procedure in 5G. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Introduction 0:39 -SSB Burst 2:21 - RACH Transmission (Message 1) 2:41 - Zadoff Chu Sequences 5:05 - Timing Advance Command (Message 2) 5:26 - RRC Connection Request (Message 3) 5:40 - Contention Resolution (Message 4) 7:53 - Contention Free RACH procedure Corre...
Energy Saving Techniques for UE in 5G: RRC States, DRX, and CDRX
มุมมอง 4.5Kปีที่แล้ว
In 5G, UE sleeps when there is no data traffic, and wakes up when data arrives in downlink or uplink buffer. This video explains the basics of sleep and wake-up mechanisms using RRC states, DRX, and CDRX. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Introduction 0:18 - RRC States 1:31 - Discontinuous Reception (DRX) 1:35 - Initiating downlink data transmission 3:12 - Initiating uplink data transm...
5G: CSI RS Configuration for Time offset between PDCCH and CSI-RS Signal
มุมมอง 3.8Kปีที่แล้ว
In 5G, CSI-RS signal is used for channel measurement and beam tracking. This video describes the RRC configuration for the time offset between PDCCH and its corresponding CSI-RS. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Problem Statement 2:21 - CSI request 2:38 - CSI-AperiodicTriggerStateList 3:23 - associatedReportConfigInfoList 3:34 - reportConfigID 3:50 - csi-ReportConfigToAddModList 4:13 ...
Cellular Communication Terminologies
มุมมอง 1.7Kปีที่แล้ว
This video explains some of the most common terminologies used in 2G/3G/4G/5G cellular communication. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:04 - Core Network and Radio Access Network (RAN) 0:45 - Baseband and Radio Access Technology (RAT) 0:52 - Signalling Format 1:00 - 2G 1:25 - 3G 1:38 - 4G 1:47 - 5G
Channel Models in Wireless Communication
มุมมอง 7Kปีที่แล้ว
This video explains the classification of channel models in wireless communication. ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ 0:00 - Introduction 0:38 - AWGN Channel 1:04 - Slow Varying Frequency Flat Fading Channel 1:15 - Penetration Loss & Shadow Loss 2:07 - Slow Varying Frequency Selective Fading Channel 2:47 - Large Scale Fading & Small Scale Fading 3:56 - Fast Varying Frequency Selective Fading ...

ความคิดเห็น

  • @thepromisedlan
    @thepromisedlan 2 วันที่ผ่านมา

    Thanks for the video, it was very clear! I have a question, does this mean there is a miniscule chance of two UEs ending up with the same C-RNTI, if the selected ue-identity is also the same?

  • @ericmrozinski6143
    @ericmrozinski6143 6 วันที่ผ่านมา

    Indeed, the best explanation of the concept around PDCCH scheduling I have seen anywhere, including the '5G bible' "5G New Radio In Bullets". Thank you for your effort!

  • @user-pq2ob7mw7e
    @user-pq2ob7mw7e 10 วันที่ผ่านมา

    please more video please

  • @jeffoh4793
    @jeffoh4793 23 วันที่ผ่านมา

    great explanation but the AI voice sounds a little off dont ya think? lol

  • @sukshithshetty8349
    @sukshithshetty8349 หลายเดือนก่อน

    I didnt understand Interleaving and REG Bundle. Why is this neccessary when we already already know CCE is made of 6 REs? and Why is interleaving and cyclic shift used ?

  • @sukshithshetty8349
    @sukshithshetty8349 หลายเดือนก่อน

    When and where does RA-RNTI comes into picture???

  • @chandrakanthmangali5456
    @chandrakanthmangali5456 2 หลายเดือนก่อน

    Best Explanation for CORESET

  • @thingstoknow3641
    @thingstoknow3641 2 หลายเดือนก่อน

    Thank you, can you please let us know how to calculate Uplink TB size in 5G ?

  • @bgjay6865
    @bgjay6865 2 หลายเดือนก่อน

    It's awesome!!!

  • @yagzyalcntas553
    @yagzyalcntas553 3 หลายเดือนก่อน

    AMAZING

  • @amitsardanayt
    @amitsardanayt 3 หลายเดือนก่อน

    Very clear video with minimum time wastage. Loved it

  • @ayushibhatt9518
    @ayushibhatt9518 3 หลายเดือนก่อน

    Thanks for such a brief video. Can you also make a separate video based on Zadoff Chu sequence, that would be incredibly helpful.

  • @kirankumaryakkala
    @kirankumaryakkala 3 หลายเดือนก่อน

    Appreciate your presentation. The topic is neatly explained in a simplest way. I saw very few videos. Could you please cover more topics. Thanks

  • @Orig_Xi_jinping_from_china
    @Orig_Xi_jinping_from_china 3 หลายเดือนก่อน

    Can anyone tell which 3gpp papers should I refer to understand mac layer ?

  • @sukshithshetty8349
    @sukshithshetty8349 4 หลายเดือนก่อน

    What is the use of Timing Advance?

    • @WirelessExplained
      @WirelessExplained 3 หลายเดือนก่อน

      BS has to receive uplink signal from all UEs at the same time, i.e., time synchronized. So, far-away UEs transmit earlier than nearby UEs, so that all signals reach BS at the same time.

  • @sukshithshetty8349
    @sukshithshetty8349 4 หลายเดือนก่อน

    First Question, how will one UE know which Zad Off Chu seq was selected by other UE??

    • @WirelessExplained
      @WirelessExplained 3 หลายเดือนก่อน

      UE will not know. In contention based RACH procedure, a UE randomly choose a Zadoff Chu sequence, without knowing if any other UE also has chosen the same.

  • @nhlalo5446
    @nhlalo5446 4 หลายเดือนก่อน

    Thank you

  • @user-lu5wh1sw1i
    @user-lu5wh1sw1i 5 หลายเดือนก่อน

    Very nice❤❤ thank you

  • @anuragchakra
    @anuragchakra 5 หลายเดือนก่อน

    Amazing ultimate explnation brother loved it ❤❤...Many thanks for your amazing content

  • @anuragchakra
    @anuragchakra 5 หลายเดือนก่อน

    Wow amazing visual aids and animations loved this..Thanks for explanation, please keep adding more...loved this great 👍👌🏻🌟😊

  • @anuragchakra
    @anuragchakra 5 หลายเดือนก่อน

    Amazing succint explanation video thanks for making and sharing...👌🏻

  • @anuragchakra
    @anuragchakra 5 หลายเดือนก่อน

    Wow best amazing explantion i have seen till now.. Thanks a lot..please do more videos❤

  • @honoreho7965
    @honoreho7965 5 หลายเดือนก่อน

    Very good presentation, thanks

  • @user-fq9zt6pj7m
    @user-fq9zt6pj7m 5 หลายเดือนก่อน

    More new videos...

  • @user-fq9zt6pj7m
    @user-fq9zt6pj7m 5 หลายเดือนก่อน

    I want new awesome video.

  • @willliu1306
    @willliu1306 5 หลายเดือนก่อน

    Great Video with insight. But it seems that the Max Allowed LDPC input size for Procedure C shall be 8424 (which is the maximum input size of BG1 exclude 24bit CB-CRC) .

  • @user-yn3ww1fu6f
    @user-yn3ww1fu6f 6 หลายเดือนก่อน

    Great Explanation :)

  • @maciess5226
    @maciess5226 6 หลายเดือนก่อน

    Great visualization! Amazing work. Are you sure is CSI req is sending only via DCI0_0? I think in 5g DCI0_1 can be also used for request? I assume we still talk only about the aperiodic one.

    • @WirelessExplained
      @WirelessExplained 6 หลายเดือนก่อน

      You are right. "CSI request" can be sent in DCI0_1 also, which I forgot to mention at 2:29. Thanks for pointing this out 👍

  • @yanpengyang8085
    @yanpengyang8085 6 หลายเดือนก่อน

    How come the coreset longer than 3 OFDM symbols at 4:23?

    • @WirelessExplained
      @WirelessExplained 6 หลายเดือนก่อน

      You are right. CORESET duration cannot exceed 3 symbols. The example at 4:23 is only for illustration purpose. Thanks for pointing this out 👍

  • @VipinKumar-dv7hy
    @VipinKumar-dv7hy 6 หลายเดือนก่อน

    Hi why you are not uploading new videos .you hav been doing great work with your deep experience

  • @rakshitverma5016
    @rakshitverma5016 6 หลายเดือนก่อน

    excellent video

  • @arv_sajeev
    @arv_sajeev 7 หลายเดือนก่อน

    Great videos, the graphics help a lot :), do you use manim or some other tool to prepare the visuals?

    • @WirelessExplained
      @WirelessExplained 7 หลายเดือนก่อน

      For this video, I used After Effects.

  • @huseyinakca8681
    @huseyinakca8681 7 หลายเดือนก่อน

    thanks for video.. but I wanna ask a question to you.. is this mechanism just valid for downlink link adaptation ? or what about uplink link adaptation ? is the arrangment of MCS ealized at gNB for uplink link adaptation ??

    • @WirelessExplained
      @WirelessExplained 7 หลายเดือนก่อน

      Yes, this mechanism is valid for uplink also. In uplink, MCS for PUSCH transmission is decided by BS and conveyed to UE via scheduling grant (DCI_0 within PDCCH). BS adjusts _uplink MCS_ to attain a _target BLER_ , typically 10% for MBB traffic.

  • @ahmednor5806
    @ahmednor5806 9 หลายเดือนก่อน

    🙏💐💐💐

  • @jyothi648
    @jyothi648 9 หลายเดือนก่อน

    As you mentioned , In 4G, on every slot, some 1 are 2 are symbols are reserved for PDCCH and remaining symbols are for data transmission..in that reserved symbols if we don't transmit PDCCH,the unused symbols can't be used for data transmission.. Coming to 5G , CORESET concept was introduced for PDCCH transmission My query is like Can't we transmit PDCCH without CORESET? In 5G, we can use that unused symbols in the PDCCH for data transmission purpose... Can we do in this way like ..without having that CORESET for PDCCH transmission,can we use that unused symbols in the PDCCH for data transmission purpose? How that CORESET will be placed in time and frequency grid? Is there any triggering condition or when the PDCCH data is available it will also be available at that time?

    • @WirelessExplained
      @WirelessExplained 9 หลายเดือนก่อน

      UE search for PDCCH in all CORESET configured. If CORESET concept is absent, then UE has to search for PDCCH on a larger search space. CORESET is introduced to reduce the search space for UEs. Time-frequency location of CORESET is informed by BS to UE via RRC messages 1:25 .

    • @jyothi648
      @jyothi648 5 หลายเดือนก่อน

      Thank you@@WirelessExplained

  • @sivasaikrishnamarthy178
    @sivasaikrishnamarthy178 9 หลายเดือนก่อน

    Excellent presentation

  • @jorgeagosto6848
    @jorgeagosto6848 10 หลายเดือนก่อน

    🎉❤🎉

  • @arjunmenonkandanat6328
    @arjunmenonkandanat6328 10 หลายเดือนก่อน

    wonderful explanation. I can see the sheer amount of hardwork that has gone into making this video

  • @sanjudas1759
    @sanjudas1759 10 หลายเดือนก่อน

    superb! 😀

  • @marshscat8031
    @marshscat8031 10 หลายเดือนก่อน

    Thanks very useful 🙏

  • @karolsmiaek9261
    @karolsmiaek9261 10 หลายเดือนก่อน

    Great video

  • @ATUS1213
    @ATUS1213 10 หลายเดือนก่อน

    Great job. Very concise and informative. Thank you for sharing

  • @VipinKumar-dv7hy
    @VipinKumar-dv7hy 11 หลายเดือนก่อน

    Very informative..waiting for new video

  • @VipinKumar-dv7hy
    @VipinKumar-dv7hy 11 หลายเดือนก่อน

    Waiting for new video..very nicely explained

  • @achmadrizaldanisya9517
    @achmadrizaldanisya9517 11 หลายเดือนก่อน

    so, if I'm going to simulate a certain service from 5QI with certain SINR in 5G NR what paper you could recommend, so I could calculate accurately the carrier capacity (not just Shannon capacity)?

    • @WirelessExplained
      @WirelessExplained 7 หลายเดือนก่อน

      You can use 5g-tools.com/5g-nr-throughput-calculator/

    • @achmadrizaldanisya9517
      @achmadrizaldanisya9517 7 หลายเดือนก่อน

      @@WirelessExplained Thanks!

  • @Umer_Aftab
    @Umer_Aftab 11 หลายเดือนก่อน

    Thanks

  • @Hkme89
    @Hkme89 11 หลายเดือนก่อน

    Very helpful and easy to understand. Thank you 🌺

  • @PrashantMishra-xp9bf
    @PrashantMishra-xp9bf 11 หลายเดือนก่อน

    Very informative. Excellent! 👍

  • @kevinyuan6685
    @kevinyuan6685 11 หลายเดือนก่อน

    Excellent video.

  • @NguyenThiTam0910
    @NguyenThiTam0910 11 หลายเดือนก่อน

    thank you a lot, best explaination i've seen