Abstract: A beamformer for providing signals from a device under test (DUT) and an emulator is disclosed. The beamformer includes: a radio frequency (RF) interface configured to receive a plurality of radio beams and convert a data stream comprising a plurality of radio beams from analog signals to digital signals; a radio samples processor configured to receive the digital signals, decouple data samples from the plurality of radio beams, and recombine the data samples to provide a single data stream to a corresponding single device used by an end-user; and a local processor adapted to dynamically adjust operational parameters in the radio samples processor of the single data stream.

Abstract: A test apparatus includes: a communication interface for connection to a enodeb of a mobile telecommunication network provided with beamforming functionality, the communication interface being configured to receive communication traffic between the enodeb and a mobile terminal coupled in communication to the enodeb (3); a beamforming-testing unit, configured to receive communication-channel-quality signals (RSRPS) corresponding to each communication beam (B1, B2, . . . , BN), the communication-channel-quality signals (RSRPS) representing a signal power received by the mobile terminal. The beamforming-testing unit checks whether communication settings of the enodeb in relation to selection of the communication beams (B1, B2, . . . , BN) are consistent with the communication-channel-quality signals (RSRPS).

Abstract: A beamformer for providing signals from a device under test (DUT) and an emulator is disclosed. The beamformer includes: a radio frequency (RF) interface configured to receive a plurality of radio beams and convert a data stream comprising a plurality of radio beams from analog signals to digital signals; a radio samples processor configured to receive the digital signals, decouple data samples from the plurality of radio beams, and recombine the data samples to provide a single data stream to a corresponding single device used by an end-user; and a local processor adapted to dynamically adjust operational parameters in the radio samples processor of the single data stream.

Abstract: A test apparatus includes: a communication interface for connection to a enodeb of a mobile telecommunication network provided with beamforming functionality, the communication interface being configured to receive communication traffic between the enodeb and a mobile terminal coupled in communication to the enodeb (3); a beamforming-testing unit, configured to receive communication-channel-quality signals (RSRPS) corresponding to each communication beam (B1, B2, . . . , BN), the communication-channel-quality signals (RSRPS) representing a signal power received by the mobile terminal. The beamforming-testing unit checks whether communication settings of the enodeb in relation to selection of the communication beams (B1, B2, . . . , BN) are consistent with the communication-channel-quality signals (RSRPS).

Abstract: A mobile terminal simulator for a wireless telecommunications network includes: a simulation engine, providing a bit stream, according to a communications standard; a conversion stage, which converts the bit stream into a baseband signal in the frequency domain; a mapping and transformation stage, which generates transmission samples in the time domain as a function of the baseband signal; and a transmission module, connectable to a Base Radio Station of a wireless telecommunications network by a communication port. A transmission channel simulator module is connected between the conversion stage and the mapping and transformation stage and processes the baseband signal in the frequency domain so as to simulate a transmission channel between the communication port and the Base Radio Station.

Abstract: A test apparatus for a telecommunication network includes: simulated mobile terminals, which supply respective bit streams; and SDR stages, which receive the bit streams of respective simulated mobile terminals that communicate with respective base stations and have respective SDR uplink stages and SDR downlink stages. An SDR uplink stage includes: at least one processing branch, which converts the bit stream of a respective mobile terminal into a baseband signal; a mapping module, which generates a respective uplink sub-carrier vector via a mapping of the baseband signals; an inter-cell interference module, which combines the sub-carrier vector with the uplink sub-carrier vectors of at least one of the other SDR stages; and an inverse-transform module, which performs an inverse transform of the baseband signals.

Abstract: A test apparatus for a telecommunication network includes: simulated mobile terminals, which supply respective bit streams; and SDR stages, which receive the bit streams of respective simulated mobile terminals that communicate with respective base stations and have respective SDR uplink stages and SDR downlink stages. An SDR uplink stage includes: at least one processing branch, which converts the bit stream of a respective mobile terminal into a baseband signal; a mapping module, which generates a respective uplink sub-carrier vector via a mapping of the baseband signals; an inter-cell interference module, which combines the sub-carrier vector with the uplink sub-carrier vectors of at least one of the other SDR stages; and an inverse-transform module, which performs an inverse transform of the baseband signals.

Abstract: A mobile terminal simulator for a wireless telecommunications network includes: a simulation engine, providing a bit stream, according to a communications standard; a conversion stage, which converts the bit stream into a baseband signal in the frequency domain; a mapping and transformation stage, which generates transmission samples in the time domain as a function of the baseband signal; and a transmission module, connectable to a Base Radio Station of a wireless telecommunications network by a communication port. A transmission channel simulator module is connected between the conversion stage and the mapping and transformation stage and processes the baseband signal in the frequency domain so as to simulate a transmission channel between the communication port and the Base Radio Station.

Abstract: A mobile terminal simulator for a wireless telecommunications network includes: a simulation engine, providing a bit stream, according to a communications standard; a conversion stage, which converts the bit stream into a baseband signal in the frequency domain; a mapping and transformation stage, which generates transmission samples in the time domain as a function of the baseband signal; and a transmission module, connectable to a Base Radio Station of a wireless telecommunications network by a communication port. A transmission channel simulator module is connected between the conversion stage and the mapping and transformation stage and processes the baseband signal in the frequency domain so as to simulate a transmission channel between the communication port and the Base Radio Station.

Abstract: A mobile terminal simulator for a wireless telecommunications network includes: a simulation engine, providing a bit stream, according to a communications standard; a conversion stage, which converts the bit stream into a baseband signal in the frequency domain; a mapping and transformation stage, which generates transmission samples in the time domain as a function of the baseband signal; and a transmission module, connectable to a Base Radio Station of a wireless telecommunications network by a communication port. A transmission channel simulator module is connected between the conversion stage and the mapping and transformation stage and processes the baseband signal in the frequency domain so as to simulate a transmission channel between the communication port and the Base Radio Station.

Abstract: A mobile-terminal simulator of a wireless telecommunications network includes a control module, a protocol simulator, and a baseband-modem module, coupled to the protocol simulator. The simulator is provided with a baseband interface for coupling in communication the baseband-modem module with a radio base station of a wireless telecommunications system with a low-frequency connection.