Radio frequency front-end bus hub circuit and related apparatus
AssigneeQorvo US, Inc.
InventorsChristopher Truong Ngo, Alexander Wayne Hietala
Life of this patent
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Abstract
A radio frequency front-end (RFFE) bus hub circuit and related apparatus are provided. In examples discussed herein, the RFFE bus hub circuit can be configured to bridge an RFFE bus with a number of auxiliary RFFE buses. In a non-limiting example, each of the auxiliary RFFE buses can be configured to support up to fourteen RFFE slaves. Thus, by bridging the RFFE bus with multiple auxiliary RFFE buses using the RFFE bus hub circuit, it may be possible to support more than fifteen RFFE slaves without adding an additional RFFE bus. As a result, it may be possible to reduce pin count requirement for an RFFE master and/or enable flexible RFFE bus deployment in an RFFE apparatus.
Claims20
A radio frequency front-end (RFFE) bus hub circuit comprising:
- a primary port coupled to an RFFE master via an RFFE bus;
- at least one first auxiliary port coupled to at least one first RFFE slave via at least one first auxiliary RFFE bus;
- at least one second auxiliary port coupled to at least one second RFFE slave via at least one second auxiliary RFFE bus separated from the at least one first auxiliary RFFE bus;
- and
- a hub controller configured to:
- selectively activate at least one of the at least one first auxiliary port and the at least one second auxiliary port in response to receiving an RFFE command sequence identifying the RFFE bus hub circuit;
- and
- bridge communication between the RFFE master and at least one of the at least one first RFFE slave and the at least one second RFFE slave.
A radio frequency front-end (RFFE) apparatus comprising:
- an RFFE bus and an RFFE master coupled to the RFFE bus;
- at least one first auxiliary RFFE bus and a plurality of first RFFE slaves coupled to the at least one first auxiliary RFFE bus;
- at least one second auxiliary RFFE bus separated from the at least one first auxiliary RFFE bus and a plurality of second RFFE slaves coupled to the at least one second auxiliary RFFE bus;
- and
- an RFFE bus hub circuit comprising:
- a primary port coupled to the RFFE bus;
- at least one first auxiliary port coupled to the at least one first auxiliary RFFE bus;
- at least one second auxiliary port coupled to the at least one second auxiliary RFFE bus;
- and
- a hub controller configured to:
- selectively activate at least one of the at least one first auxiliary port and the at least one second auxiliary port in response to receiving an RFFE command sequence identifying the RFFE bus hub circuit;
- and
- bridge communication between the RFFE master and at least one of the plurality of first RFFE slaves and the plurality of second RFFE slaves.
Dependencies are inferred from the claim text.