“All these technologies have little or nothing to do with Qualcomm,” said Romit Shah, an analyst at Nomura Instinet. “The landscape, the environment has changed.”

These technologies have enriched the smartphone experience and driven up the price, especially for top-of-the-line iPhones and Galaxy models.

But what has generally not changed is Qualcomm’s licensing formula — typically charging fees of about 5 percent of the wholesale price of a phone, analysts say, even though its technology accounts for less of the value of many smartphone models.

That position has increasingly irritated big customers like Apple and Samsung and contract manufacturers like Foxconn, which is Apple’s major supplier. (The contract manufacturers are usually the ones that directly pay fees to Qualcomm, and receive pass-through payments from Apple and others.)

Antitrust Concerns

The other Qualcomm practice that has prompted scrutiny from various antitrust investigators is charging smartphone makers license fees whether or not they use Qualcomm chips, because of the strength of its patents.

Qualcomm contends that its licensing practices are fair, simple and efficient — allowing new entrants, especially start-ups in Asia, to enter the smartphone market. But after an antitrust investigation in China, Qualcomm paid a fine of $975 million in 2015.

As part of the settlement, Qualcomm agreed to license some of its patents to Chinese handset makers at lower rates. Analysts estimate that Qualcomm’s overall royalty rates in China were cut by as much as half, to about 2.5 percent.