US5825758A

2G

Title:

Method and apparatus for improving the detectability of a broadcast control channel in a mobile communication system

Application number:

US19960591499

Family ID:

8540779

Publication Date:

20-10-1998

Application date:

25-01-1996

Priority Date:

26-05-1994

Current assignee:

NOKIA CORP

Declaring company:

NOKIA CORP

Abstract  Abstract

A method for improving the delectability of a broadcast control channel of base in a radio system in which the transmitting and receiving frequency resources of respective transceiver units have been divided on the TDMA/FDMA principle into channels. The base stations have equipment for establishing radio connections to radio units in their respective radio coverage areas and respective transmitters for transmitting a broadcast control channel. At least two of the base stations are arranged to transmit the broadcast control channel by utilizing the same predetermined frequency channel. In order to reduce interference the transmission power used when transmitting on the predetermined frequency channel by the transmitters of the respective base stations is adjusted so as to be lower in those time slots in which the broadcast control channel is not transmitted than it is in that or those time slots in which the broadcast control channel is transmitted.