Method and apparatus for transmitting and receiving system information in a mobile communication system

摘要

A method and apparatus are provided for transmitting and receiving System Information (SI) in a mobile communication system. The method for receiving the SI by a User Equipment (UE) includes receiving, by the UE, at a fixedly scheduled sub-frame of a predetermined radio frame within a Primary Broadcast CHannel (P-BCH) transmission period, the SI including first partial bits of a System Frame Number (SFN), the first partial bits indicating a repeated value; and acquiring, by the UE, second partial bits of the SFN in the predetermined radio frame by decoding the P-BCH, the second partial bits indicating a different value.

主权项

1. A method for receiving system information (SI) by a user equipment (UE) in a mobile communication system, the method comprising:
receiving, by the UE, the SI including first partial bits of a system frame number (SFN) on a broadcast channel (BCH) at a first subframe of a radio frame, the first partial bits of the SFN having an identical value indicating a reference SFN during a predetermined N successive radio frames of a BCH transmission period, where N is a positive integer; and acquiring, by the UE, second partial bits of the SFN for the radio frame, the second partial bits of the SFN having different values in each radio frame of the predetermined N successive radio frames of the BCH transmission period, and the second partial bits indicating an offset, wherein the SFN is calculated based on the first partial bits and the second partial bits.