System Information Block 2 (SIB-2) in LTE

  • A UE uses the access barring information in SIB2 to determine whether it is allowed to access the network. For example, a UE that is not registered with the network may be barred from accessing the network.
  • A UE uses the RACH related configuration in SIB2 to determine how to access the RACH. For example, the UE uses this information to determine the preamble sequence that it should use and the number of times that it should transmit the preamble.
  • A UE uses the idle mode paging configuration in SIB2 to determine how it will be paged when new data is available for it. For example, the UE uses this information to determine the paging channel that it should monitor and the paging cycle.
  • A UE uses the PUCCH and PUSCH configuration in SIB2 to determine how it will transmit data on these channels. For example, the UE uses this information to determine the number of symbols that it should use to transmit data on the PUCCH and the maximum number of PDUs that it can transmit on the PUSCH in a single transmission.
  • A UE uses the uplink power control and SRS configuration in SIB2 to determine how it will adjust its transmit power on the uplink and how it will use SRS to measure the uplink channel conditions. For example, the UE uses this information to determine the power ramping step and the preamble initial received target power.
  • A UE uses the uplink carrier frequency and bandwidth information in SIB2 to determine the frequency and bandwidth of the uplink carrier. This information is used by the UE to configure its uplink transmitter and receiver.

SIB 2 IEs

Leave a Reply