Declutter 3GPP Standards

A Blog dedicated to Declutter 3GPP specifications

A Blog dedicated to Declutter 3GPP specifications

Wednesday, November 25, 2020

NR-U Control plane (Candidates)

  November 25, 2020    

 Note: NR-Unlicensed is still in the study phase with barely any work done on the TS. It is expected that by 2022 (so Release 18) we may see some specification for the 6GHz band in Europe. As of now, only potential candidates for NR-U implementation can be guessed. RLM/RLF and mobility For non-standalone NR-U deployments, connected mode mobility is supported on licensed spectrum using the...

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NR-U Layer 2 (Candidates)

  November 25, 2020    

 Note: NR-Unlicensed is still in the study phase with barely any work done on the TS. It is expected that by 2022 (so Release 18) we may see some specification for the 6GHz band in Europe. As of now, only potential candidates for NR-U implementation can be guessed. RACH (4-step, 2-step) Both 4-step and 2-step RACH will be supported for NR-U. Here 2-step RACH refers to the procedure...

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NR-U Physical layer channel designs(Candidates)

  November 25, 2020    

 For physical layer channel design, NR design will be used as baseline, and the following potential design changes are to be studied to support the following channels/signals in NR-U. -    PDCCH/PDSCH -    PUCCH/PUSCH -   ...

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NR-U Physical Frame structure (Candidates)

  November 25, 2020    

NR-Unlicensed is still in the study phase with barely any work done on the TS. It is expected that by 2022 (so Release 18) we may see some specification for the 6GHz band in Europe. As of now, only potential candidates for NR-U implementation can be guessed. Physical layer aspectsNR-U supports both Type-A and Type-B mapping already supported in NR. Initial active DL/UL BWP is approximately 20MHz...

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NR-U Channel Access Schemes (Candidates)

  November 25, 2020    

 Note: NR-Unlicensed is still in the study phase with barely any work done on the TS. It is expected that by 2022 (so Release 18) we may see some specification for the 6GHz band in Europe. As of now, only potential candidates for NR-U implementation can be guessed. The channel access candidate schemes for NR-based access for unlicensed spectrum can be classified into the following categories: -   ...

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Sunday, November 22, 2020

NR-U Inactive and Idle procedures (Candidates)

  November 22, 2020    

Note: NR-Unlicensed is still in the study phase with barely any work done on the TS. It is expected that by 2022 (so Release 18) we may see some specification for the 6GHz band in Europe. As of now, only potential candidates for NR-U implementation can be guessed. Inactive and Idle procedures (Candidates)For Inactive and Idle mode procedures, Rel-15 NR design is considered as the baseline...

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Monday, November 16, 2020

Mobility enhancement in E-UTRAN Release -16

  November 16, 2020    

 Dual Active Protocol Stack (DAPS) handover DAPS Handover is a handover procedure that maintains the source eNB connection after reception of RRC message for handover and until releasing the source cell after successful random access to the target eNB. -    If DAPS handover is configured, the UE continues the downlink user data reception from the source eNB until releasing the...

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DL MIMO efficiency enhancements for LTE

  November 16, 2020    

MIMO is an effective technique to improve spectral efficiency and increase overall network capacity. SRS can be utilized to improve DL MIMO performance, especially for massive MIMO in TDD. In release-16 SRS capacity and coverage are enhanced by introducing more than one SRS symbol in a UL normal subframe and introducing virtual cell ID for SRS. More than one symbol for SRS in a UL normal subframe With...

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Network Slicing

  November 16, 2020    

 Release 16 Network Slicing addresses two major limitations of Release 15 in 5GC: (1) Enhancement of interworking between EPC and 5GC when UE moves from EPC to 5GC, the target serving AMF may not be able to serve all the PDU sessions that the UE intends to move to the 5GC.  More specifically, the following aspects needs to be addressed: -             ...

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