Patent ID: 10117113

Abstract:
Embodiments provide beamforming apparatuses, methods and a computer programs for a base station transceiver and a mobile transceiver. An apparatus (10) operable in a base station transceiver (100) of a mobile communication system comprises a transceiver module (12) comprising interfaces to a plurality (15) of antennas. The transceiver module (12) is operable to subdivide the plurality (15) of antennas in a plurality of subgroups using the interfaces, and to form a first beam pattern (16) using one or more antennas of a subgroup. The apparatus (10) further comprises a control module (14), which is operable to transmit a synchronization signal using the transceiver module (12) and the first beam pattern (16). The control module (14) is further operable to receive a response signal after transmission of the synchronization signal from a mobile transceiver (200) using the transceiver module (12), to determine a second beam pattern (18) based on the response signal from the mobile transceiver (200). The second beam pattern (18) has a higher antenna gain than the first beam pattern (16), and to transmit a signal to the mobile transceiver (200) using the second beam pattern (18) and the transceiver module (12). An apparatus (20) operable in a mobile transceiver (200) of a mobile communication system comprises a transceiver module (22) comprising interfaces to a plurality of antennas (25), and a control module (24) operable to determine a first set of beam patterns (26) based on the plurality of antennas (25), to receive a signal from a base station transceiver (100) using a first beam pattern from the first set of beam patterns (26) using the transceiver module (22). The control module (24) is further operable to determine a second set of beam patterns (28) based on the plurality of antennas (25), the second set of beam patterns (28) comprising more beam patterns than the first set of beam patterns (26), and to transmit a signal to the base station transceiver (100) using a second beam pattern from the set of second beam patterns (28) and using the transceiver module (22).