Analog baseband interface for communication systems
AssigneeQUALCOMM Incorporated
InventorJustin Hwang
Life of this patent
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Abstract
A communication system interface between a baseband unit and a radio frequency (RF) unit is configured to advantageously use a common set of lines to carry both transmit and receive baseband analog signals between the baseband and RF unit, thereby enabling a relatively lower signal count and permitting loopback testing of elements within the baseband and the RF units.
Claims10
A wireless communication system comprising:
- a baseband unit including a plurality of baseband sub-units;
- an RF unit including a plurality of RF sub-units, each RF sub-unit including an antenna;
- a plurality of sets of inter-unit lines, each set of inter-unit lines connecting a baseband sub-unit and a corresponding RF sub-unit,
- wherein each baseband sub-unit and its corresponding RF sub-unit form a processing section for providing baseband reception and transmission as well as RF reception and transmission, and
- wherein communication from a first baseband sub-unit to a first RF unit of a first processing section and from a second RF sub-unit to a second baseband sub-unit of a second processing section share a set of inter-unit lines.
A method of communicating in a wireless system, the wireless system including a baseband unit and an RF unit, the baseband unit including a plurality of baseband sub-units, the RF unit including a plurality of RF sub-units, each RF sub-unit including an antenna, each baseband sub-unit and its corresponding RF sub-unit forming a processing section for providing baseband reception and transmission as well as RF reception and transmission, the method comprising:
- communicating from a first baseband sub-unit to a first RF unit of a first processing section and from a second RF sub-unit to a second baseband sub-unit of a second processing section by sharing a common set of inter-unit lines.
A method of communicating in a wireless system, the wireless system including a baseband unit and an RF unit, the baseband unit including a plurality of baseband sub-units, the RF unit including a plurality of RF sub-units, each RF sub-unit including an antenna, each baseband sub-unit and its corresponding RF sub-unit forming a processing section for providing baseband reception and transmission as well as RF reception and transmission, the method comprising:
- communicating from a first baseband sub-unit to a first RF unit of a first processing section and from the first RF sub-unit to the first baseband sub-unit using inter-unit lines of different processing sections.
A method of providing loopback testing in a wireless system, the wireless system including a baseband unit and an RF unit, the baseband unit including a plurality of baseband sub-units, the RF unit including a plurality of RF sub-units, each RF sub-unit including an antenna, each baseband sub-unit and its corresponding RF sub-unit forming a processing section for providing baseband reception and transmission as well as RF reception and transmission, the method comprising:
- connecting a component of a first baseband sub-unit to a component of a first RF sub-unit using a first set of inter-unit lines;
- and
- connecting another component of the first RF sub-unit to another component of the first baseband sub-unit using a second set of inter-unit lines, the first and second sets of inter-unit lines corresponding to different processing sections.
Dependencies are inferred from the claim text.