U-blox Ag

U-box Ag

Peter Mutitika Kibutu

Norman Beamish

John Haine

A transceiver apparatus () is configured to support antenna selection in accordance with a communications standard. The apparatus comprises a hardware subsystem () comprising a duplexing component (), a transmitter chain, a first receiver chain () and a second receiver chain () respectively comprising a first antenna port () and a second antenna port () at an upstream end thereof. The first receiver chain () and the transmitter chain sharing the duplexing component (). The apparatus further comprises a signal redirection system () arranged to couple temporarily the second antenna port () to the first receiver chain () at a point of entry thereof and in response to an antenna selection instruction, thereby redirecting temporarily a signal path from the second antenna port () into the first receiver chain () and then back into the second receiver chain () downstream of the point of entry.

Transceiver apparatus supporting antenna selection and method of processing received signals

A modem apparatus is configured to provide wireless network access in accordance with an Orthogonal Frequency Division Multiplexing communications scheme. The apparatus comprises a hardware subsystem comprising baseband processing components (), Radio Frequency processing components () and a digital interface. The Radio Frequency processing components () comprise a converter component arranged to convert between time and frequency domains in accordance with the Orthogonal Frequency Division Multiplexing communications scheme; a subcarrier processing component operably coupled to the converter component, the subcarrier processing component being arranged to implement conversion between a collapsed space of subcarriers and an expanded space of subcarriers in accordance with resource assignment data; a cyclic prefix processing component responsive to control information. The baseband processing components () comprise a channel estimation component. The digital interface () is disposed between the baseband processing components () and the RF processing components (), the digital interface () being operably coupled to the subcarrier processing component and the channel estimation component.

Modem apparatus, communications system and method of processing subcarriers

A modem apparatus is configured to provide wireless network access in accordance with an Orthogonal Frequency Division Multiplexing communications scheme. The apparatus comprises a hardware subsystem comprising baseband processing components () and Radio Frequency processing components (). The baseband processing components () comprise a first converter component () arranged to convert between time and frequency domains in accordance with the Orthogonal Frequency Division Multiplexing communications scheme, and a second converter component () arranged to convert between parallel and serial data formats, the second converter () being operably coupled to the first converter (). The Radio Frequency processing components () comprise a cyclic prefix processing component () responsive to control information. A digital interface () is disposed between the baseband processing components () and the RF processing components (), the digital interface () being operably coupled to the second converter () and the cyclic prefix processing component ().

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Cambridge, United Kingdom

Peter Mutitika Kibutu