FIELD: information technology.
SUBSTANCE: invention particularly discloses a method of updating system information in a broadband wireless communication system in which data are transmitted and received via a superframe, involving: receiving information from a base station by means of superframes including a primary superframe header (P-SFH) and a secondary superframe header (S-SFH), wherein that information includes control information transmitted via an information element of the P-SFH (P-SFH IE) and system information transmitted via at least one of information element of a subpacket (SP) of the S-SFH (S-SFH SP IE); decoding the P-SFH IE, wherein the P-SFH IE includes a scheduling information bitmap indicating a transmitted S-SFH SP IE in the superframe, a change count (CC) of the S-SFH, and a SP change bitmap indicating changing status of the S-SFH SP IE; comparing the received CC with a previously stored CC; checking the S-SFH SP change bitmap, if there is a difference between the received CC and the stored CC; and decoding and updating the corresponding SP IE S-SFH based on the checking result.
EFFECT: high efficiency of power consumption of a terminal.
15 cl, 20 dwg
