Abstract: An object of the present invention is to provide a mechanism for tamper detection of electronic devices (110) in closed units which is robust and low cost. The object is achieved by a method in an electronic device (110) for detecting if a cover (100) enclosing the electronic device (110) has been opened. The cover (100) comprises an enclosing assembly (250) which is adapted to fasten the cover (100) into a closed position. The electronic (device 110) comprises a non volatile memory (120). The non volatile memory (120) comprises a stored reference signature associated to the enclosing assembly (250) when the cover (100) was fastened into a closed position. The method comprises the following steps: (Creating 1003) a signature associated to the enclosing assembly (250). Comparing (1004) the created signature with the reference signature. Detecting (1007) that the cover 100 has been opened when the comparing (1004) results in a difference.

Abstract: A programmable fuse and fuse panel are described. Unlike conventional fuses and fuse panels, the trip values of the fuses of the panel—i.e., the current values at which the fuse trips—are field programmable. One of many advantages includes the ability to adaptively set the trip value of a fuse—depending on the operating needs of a load device—without having to physically exchange the fuse. In an embodiment, electronic fuses are used.

Abstract: An object of the present invention is to provide a mechanism for tamper detection of electronic devices (110) in closed units which is robust and low cost. The object is achieved by a method in an electronic device (110) for detecting if a cover (100) enclosing the electronic device (110) has been opened. The cover (100) comprises an enclosing assembly (250) which is adapted to fasten the cover (100) into a closed position. The electronic (device 110) comprises a non volatile memory (120). The non volatile memory (120) comprises a stored reference signature associated to the enclosing assembly (250) when the cover (100) was fastened into a closed position. The method comprises the following steps: (Creating 1003) a signature associated to the enclosing assembly (250). Comparing (1004) the created signature with the reference signature. Detecting (1007) that the cover 100 has been opened when the comparing (1004) results in a difference.

Abstract: A base station includes multiple sector antenna units. Each sector antenna unit has an antenna for receiving a carrier signal associated with an antenna frequency in an available frequency band. The base station is converted between a multiple sector base station configuration and a multi-sector, omni-base station configuration. In a diversity base station implementation, each sector antenna unit receives a diversity signal from a first sector, and the second diversity antenna unit receives a diversity signal from a second different sector. If one sector antenna unit does not perform properly so that one of the sector diversity signals is lost or corrupted, the other sector diversity signal is still useable. The base station may be reconfigured to power-down at least some part of the transmit side without having to power-down some or all of the receive side.

Abstract: A base station includes multiple sector antenna units. Each sector antenna unit has an antenna for receiving a carrier signal associated with an antenna frequency in an available frequency band. The base station is converted between a multiple sector base station configuration and a multi-sector, omni-base station configuration. In a diversity base station implementation, each sector antenna unit receives a diversity signal from a first sector, and the second diversity antenna unit receives a diversity signal from a second different sector. If one sector antenna unit does not perform properly so that one of the sector diversity signals is lost or corrupted, the other sector diversity signal is still useable. The base station may be reconfigured to power-down at least some part of the transmit side without having to power-down some or all of the receive side.

Abstract: A programmable fuse and fuse panel are described. Unlike conventional fuses and fuse panels, the trip values of the fuses of the panel —i.e., the current values at which the fuse trips—are field programmable. One of many advantages includes the ability to adaptively set the trip value of a fuse—depending on the operating needs of a load device—without having to physically exchange the fuse. In an embodiment, electronic fuses are used.

Abstract: The present invention relates to methods and or receiving analogue signals varying within a large signal range in for instance a radio communication system. A receiver (300) includes an un-attenuated signal receiver branch (303) with a first dynamic range and at least one attenuated signal receiver branch (304) with a second dynamic range. The attenuated signal receiver branch (304) is arranged in such a way that the second dynamic range is partly overlapping the first dynamic range and together with the first dynamic range cover the large signal range of the analogue signals. The attenuated signal receiver branch (304) includes an attenuator (306) which attenuate the amplitude of an input signal by a certain value to acquire the desired overlapping second dynamic range. The signal receiver branches are connected to a third block 308 which selects between sampled bursts from the respective signal receiver branch for further processing in the receiver.

Abstract: Methods and apparatus are provided for maintaining an accurate clock in a base transceiver station. Location measurement units which are used for determining the location of mobile stations is used to provide the current global positioning satellite (GPS) time to the base transceiver station. The base transceiver station can then adjust its own clock based upon the current GPS time. When the message in a GPS signal cannot be decoded the location measurement unit can determine the current GPS time by decoding the chip sequence of the GPS signal.

Abstract: A reference terminal used in positioning/locating of mobile terminals in a radiocommunication system is described. The reference terminal includes a time-of-arrival (TOA) receiver which is used to provide information associated with the location of mobile terminals. The TOA receiver also performs the function of calibrating the time delays within the reference terminal by measuring time delays associated with each time-sensitive component. For example, when the reference terminal transmits an uplink signal burst, e.g., reporting TOA information associated with a particular mobile terminal, a portion of this signal energy can be captured and propagated through antenna cables within the reference terminal. The TOA receiver can be used to determine time delays associated with the returned signal energy through various paths, which delays can be used to calibrate the positioning information generated by the reference terminal.