| 摘要 |
The invention concerns a method for optimally transmitting beacon services to User Equipments (UE's) (4) roaming in an area covered by several Radio Access Technologies (RAT's) using several frequencies, said area comprising a plurality of geographical zones, each zone being covered by at least one RAT among said plurality of RAT's and each User Equipment (UE) (4) having various RAT capabilities and preferences and supporting several frequencies,
said method comprises the following steps:
- transmitting in said area first beacon messages comprising information about all the RAT's deployed in said area and about all the frequencies used in said area (, and second beacon messages comprising data to be used by a UE in the geographical zone where it is located in order to select a particular RAT and/or a particular frequency actually available in said geographical zone,
- upon receiving said first and said second beacon messages, said UE runs a predefined procedure using said beacon messages and the data of one of said second beacon messages to select said particular RAT and/or said particular frequency for receiving said beacon services in the geographical zone where it is located.
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