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5G NR SIB1 contents part 2

5G NR SIB1 contents part 2

–SI-SchedulingInfo The IE SI-SchedulingInfo contains information needed for acquisition of SI messages. SI-SchedulingInfo ::= SEQUENCE { schedulingInfoList SEQUENCE (SIZE (1..maxSI-Message)) OF SchedulingInfo, si-WindowLength ENUMERATED {s5, s10, s20, s40, s80, s160, s320, s640, s1280}, si-RequestConfig SI-RequestConfig OPTIONAL, -- Cond MSG-1 si-RequestConfigSUL SI-RequestConfig OPTIONAL, -- Cond SUL-MSG-1 systemInformationAreaID …
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5G NR SIB1 contents part 1

5G NR SIB1 contents part 1

SIB1 carries information required for UE to access the cell and random access parameters. It will also include the avaibility and scheduling of other SIBs. It will also inform if one or more SIBs are on-demand and will provide PRACH configuration needed by the UE to …
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5G NR MIB

5G NR MIB

In the previous chapters we saw how UE uses SSB to get PSS and SSS. SSB also consists of PBCH block that is used to broadcast System Information So UE needs to decide PBCH/MIB in order to receive other system information. In this chapter we shall …
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5G NR System Information Acquisition and On Demand SIB

5G NR System Information Acquisition and On Demand SIB

When UE is switched on it will acquire system information for cell selection, cell-reselection. MIB and SIB1 are 2 important SI that UE requires to select and latch on to a cell. MIB and SIB1 are called as “MSI” “Minimum System Information”. Standalone SIB1 is called …
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5G NR System Information

5G NR System Information

When UE is in RRC_IDLE mode, it needs to read the system information for cell selection and cell reselection. System Information(SI) will be transmitted periodically by base station. In 5G NR the SI is divided into 3 parts as below: 1. Minimum System Information (MSI) 2. …
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5G NR PSS, SSS, PCI

5G NR PSS, SSS, PCI

For a UE to access to the network, first it has to latch on to a network. For that UE needs to find the cell and synchronize it in frequency and time domain. After that it needs to read system information. This will be done with …
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5G SSB and location of SSB

5G SSB and location of SSB

SSB stands for stands for Synchronization Signal Block. It is commonly referred as Synchronization/PBCH block as it has Synchronization and PBCH channel. So a SSB has: 1. Synchronization Signal : PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal) 2. PBCH : PBCH DMRS and PBCH (Data) …
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5G Cell Search and System Acquisition Procedure

5G Cell Search and System Acquisition Procedure

When a UE is switched on how does it knows to which cell it should camp on ? This is done by cell search and system acquisition procedure. According to TS 38.300 – 5.2.5.3 cell search procedure can be defined as below: In cell search procedure, …
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5G NR Coreset, Search Space, PDCCH, CCE, REG Definitions

5G NR Coreset, Search Space, PDCCH, CCE, REG Definitions

SCS (sub-carrier space)-sub-carrier space SCS is the space between 2 OFDM symbols. In LTE it is fixed at 15KHz. In 5G NR, there are 5 possible values based on numerology. Slot In the time domain, 5G and LTE are the same: 1 frame=10ms, 1 frame contains …
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5G NR Coreset and Search Space

5G NR Coreset and Search Space

PDCCH is a downlink control channel. It carries control information DCI of PUSCH and PDSCH. In LTE PDCCH occupies the entire bandwidth in frequency domain and first 1-3 symbols in each subframe in time domain. In 5G NR, as the bandwidth is more, it will be …
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