Patent ID: 11968751
Assignee: SONY MOBILE COMMUNICATIONS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A terminal for receiving system information in a mobile telecommunications network, the network comprising a base station configured to transmit system information for a cell provided by the base station, the terminal being configured to:
detect a first synchronisation signal from the base station, the first synchronisation signal indicated using a first sequence, including an indication that a current version of the system information has changed compared to a previous version of the system information;
receive a second synchronisation signal transmitted by the base station, wherein the second synchronisation signal, indicated using a second sequence, is for use for terminals to achieve synchronisation with the cell, wherein the first sequence differs from the second sequence;
determine, based on the indication, whether the system information stored in the terminal is valid; and
use, if the system information stored in the terminal is valid, the system information stored in the terminal, wherein the second synchronisation signal is transmitted periodically at a first time frequency and the first synchronisation signal is transmitted periodically at a second time frequency, the second time frequency being different than the first time frequency.