What does UE get in SIB2?
SystemInformationBlockType2 (SIB2) contains radio resource configuration information that is common for all UEs. It contains access barring information, radio resource configuration of common and shared channels, timers and constants which are used by UEs, uplink power control information etc.
Which reference signal is used with Pdcch?
4 Reference Signals for the Backhaul Link. Backhaul reception at the relay can use CRS or DM-RS, described in Chapter 6. Different reference-signal types can be used for R-PDCCH and PDSCH, but if the R-PDCCH is received using DM-RS, then DM-RS should be used for PDSCH as well.
What happens when a LTE UE is powered on?
A UE performs cell search on all frequencies before selecting or re-selecting to a cell. In an LTE system, two types of synchronization signals for cell search: primary synchronization signals (PSS) and secondary synchronization signals (SSS). The UE calculate the PCI by using (3 x cell group number + cell number) .
What is paging in 5G?
Directional air interface in 5G communications. Paging is an important mechanism that helps with directing an incoming call to a UE when it is an Idle mode DRX (IDRX) to conserve energy. Network broadcasts the paging messages in the cells to convey an intimation about the incoming call to the UE in IDRX mode .
What is SIB2 in 5G?
In 5G NR, System Information Block Type 2 or SIB2 provides information which is common to intra frequency , inter frequency and inter-system cell (NR – LTE) reselection. In 5G, Cell reselection can be based upon a cell level and beam level measurements.
Which reference signal is used with Pdcch in 5G?
In 5G NR, PDSCH is the physical downlink channel that carries user data. DM-RS and PT-RS are the reference signals associated with PDSCH. These signals are generated within the PDSCH allocation, as defined in TS 38.211 Sections 7.4. 1.1 and 7.4.
What is reference signal in 5G?
SRS refers to Sounding Reference signal and uplink only signal. It is configured specific to UE. In time domain, it spans 1/2/4 consecutive symbols which are mapped within last six symbols of the slot. Multiple SRS symbols allow coverage extension and increased sounding capacity.
What is the range of channel bandwidth LTE can support?
LTE RF Conformance Page 12 2. LTE Physical Layer • LTE physical layer (FDD/TDD) supports bandwidth from 1.4 to 20 MHz. Current LTE supports a subset of 6 different system bandwidths.
How is the power offset specified in sib2?
Combining all of these factors, we have pretty complicate peak-and-valley type of power terrain rather than the flat plain terrain in downlink power allocation. Power offset between PDSCH channel in the symbols with reference signal and PDSCH channel in the symbols without reference signal (P_B) is specified in SIB2 as follows.
What does the IE in sib2 tell the UE?
In SIB2, the eNodeB also sends an IE called referenceSignalPower which tells the UE the power with which the reference signal was transmitted from the eNodeB. The UE decodes the value of the referenceSignalPower and also measures the strength of the reference signal.
What is the range of sib2 in LTE?
This SIB2 does not represent any real network numberOfRA-Preambles: Total number of random access preambles available for contention based random access. Since there are maximum 64 preambles sequences available, others could be reserved by eNB for Non-Contention based random access. Range of this parameter is 4 to 64
Where does the reference signal in LTE come from?
Each cell in an LTE radio network sends a cell-specific reference signal (RS) from its transmit antennas. The transmit power of a resource element (RE) carrying such reference signal can be set to be the same as, greater than, or less than the transmit power of an RE carrying Physical Downlink Shared Channel (PDSCH).