Patent ID: 7843879

Claim:
A compressed mode configuration method in a mobile radio system, said method comprising: choosing a compressed mode configuration from a set of reference compressed mode configurations, the compressed mode configuration being defined by compressed mode parameters including a transmission gap length TGL and a transmission gap pattern length TGPL, by a processor, wherein transmission gaps are defined in a first transmission time structure specific to a first system corresponding to Universal Mobile Telecommunications System (UMTS) and determined relative to a second transmission time structure specific to a second system corresponding to Global System for Mobile communications (GSM), to enable measurements on the second system to be effected in the first system, and said compressed mode parameters are determined so that, for each reference configuration, if the transmission gap pattern length TGPL is a multiple of 6, the transmission gap length TGL is equal to 14, otherwise the transmission gap pattern length TGPL is not a multiple of 6, or otherwise a transmission gap pattern comprises a plurality of transmission gaps.