Abstract: The object of the present invention is to reduce interference and power consumption of a repeater operated in a wireless communication network. According to the present invention this object is achieved by a self-optimizing repeater (10) for use in a wireless communication network using predetermined carrier communication resources per cell. The self-optimizing repeater (10) comprises an amplifier (12) adapted to amplify a first subset of communication resources selected from, the carrier communication resources, a monitoring unit (14) adapted to monitor traffic load on the first subset of communication resources, and an adjustment unit (16) adapted to adjust the first subset of communication resources as a function of the monitored traffic load. The operation of the self-optimizing repeater is fully transparent and no control signaling is necessary to control the self-optimizing repeater.

Abstract: In some embodiments of the invention, a method is provided in a wireless communication device (110) for transmitting an alarm signal to a radio access node (120). According to this method, the wireless communication device (110) detects (210) jamming of a downlink signal (160) which is transmitted from the radio access node (120). The wireless communication device (110) then transmits (220) an alarm signal (150) over a non cell-specific contention-based uplink radio channel. The alarm signal (150) comprises information relating to an identity associated with the wireless communication device (110). The parameters required for transmitting on the non cell-specific contention-based uplink radio channel are preconfigured in the wireless communication device (110).

Abstract: A method and arrangement in a first mobile terminal (600) for determining allocation of radio resources for DMO communication amongst a group of mobile terminals. M the first mobile terminal, a first determining module 600a determines a communication (Sout, Sin) with a second mobile terminal (602) of the group. A second determining module (600b) determines a resource element (RE) for communication by applying a predefined cryptographic function P based on a terminal identification (K)). The cryptographic function has been configured in the mobile terminals of the group to provide terminal-specific resource elements for different mobile terminals within respective radio frames. A communication module (600c) then communicates with the second mobile terminal (602), either by transmission or reception of the data, on the determined resource element (RE).