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Thanks for your comment In case of LTE, you are right as scheduling is based upon subframe, but in 5G NR , scheduling is based upon slot rather than subframe. For more information, please refer to my post in LinkedIn related to the 5G NR frame structure: www.linkedin.com/posts/rahim-navaei_5g-5gnr-4g-activity-7198589778743705601-H2wR?

@@RahimNavaei Thank you.

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Deae Zahid Incorporating the 4 Least Significant Bits (LSB) of the System Frame Number (SFN) at the Physical Layer effectively reduces the frequency of updates required from the RRC layer. This is because the 4 LSBs of the SFN, which change every 10ms, extend the period over which the Master Information Block(MIB) remains constant. Consequently, the MIB content is updated every 160 ms, aligning with the cycle of the 4 LSBs in the SFN." This revision clarifies the relationship between the 4 LSBs of the SFN at the Physical Layer and the update periodicity of the MIB at the RRC layer. The same concept is applied to LTE.

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Thanks Ashish for your kind words and support. The 5G device, utilizing the SSB Index and the information from SIB1, can deduce the RACH occasions. Consequently, when the UE selects a preamble and transmits it as MSG1, the gNB identifies the specific beam that received MSG1. It then responds with MSG2, directing it to the 5G device via the same beam.

Very informative Mr Rahim! When a Ue transmits and receives within a BWP, this BWP must include SSB.Is it correct?Thank you

@@georgioskarouzos7418 The requirement of a Synchronization Signal Block (SSB) within each Bandwidth Part (BWP), specifically in an active BWP, is not always necessary. In the initial BWP, the Syncrinization Signal Block (SSB) is transmitted.

Thank you for your comment. As you know, in NR-DC configuration, the PDCP layer at the Secondary Node (SgNB) is responsible for splitting the incoming packets from the UPF. Consequently, we have two paths for sending and receiving user packets. One path utilizes the SCG (Secondary Cell Group) resources, while the other employs MCG (Master Cell Group) resources. For both paths, Carrier Aggregation (CA) can be utilized by the MgNB and SgNB to transmit and receive user packets." Carrier Aggregation (CA) allows for the use of multiple carriers or bands to increase the bandwidth and thereby the data rate for the user. In the context of NR-DC, CA can be applied to both MCG and SCG bearers to optimize the use of radio resources and improve network performance.

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Thanks for your comment, As you know the measurements and Carrier Aggregation configuration is corresponded to the the serving cell where the UE changes its state form RRC Connected to RRC Inactive.The mentioned configurations can be different , i.e. each serving cell has its own configuration.Furthermore, the UE in RRC Inactive state can move everywhere in the RNA, so when the UE decides to change its state from RRC Inactive to RRC Connected, e.g. due to paging for incoming DL data, it must send the RRC Resume to the cell it is in, which may not be the last serving cell.We can conclude that every cell which is the serving cell of the UE sends the meas. and the CA Config.

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Your Content are very informative... Thanks in advance

@@aliziya7350 Thank you

Thanks for your nice words and supporst, I'll try to prepare more posts related to 5G.

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You're welcome. I'll try to share a video about 5G registration. Your can also check out my article on NB-IoT in 5G system on LinkedIn where you can find usefuI information about 5G registration.

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In this case , UE should send RRCResumeRequest with cause "rna-Update" to update the RNA. After updating the location information , UE can be sent to the RRC Inactive state.

@@RahimNavaei thank u sir

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The size of RNA and TAL can be the same? What happen if RNA size is bigger than TAl? Thank sir

@@nguyenhuuanhkhoa7272 It is possible. For services that are sensitive to latency, it is better to choose a small size RNA. When a large size RNA is selected, more gNBs are involved and less RNA updating occurs but the delay increases. The choice of RNA size depends on the services used by 5G devices.

TO support IMS voice in 5G system both NG-RAN and 5GC should support this service. GSMA consideres NG.114 as profile to support voice and SMS in 5G. voice service is called Voice over NR(VoNR) and also Vo5G(Voice over 5G). In the RAN part, there is a new protocol layer which is called SDAP to map GBR QoS Flow to dedicated DRB. PDCP layer is also used for ROHC. EVS (Enhancef Voice Servuce ) is used as codec for VoNR.

Thanks for your contribution, I've already posted one of the slide concerned to the presentation in my LinkedIn: LinkedIn.com/in/Rahim-Navaei This is just one page as big picture , for the rest I will try to explain in the nwxt webinar.