The company invests license fee income in new products, he said. However, he declined to say how much of the company's 2011 research and development spend of US$5 billion came from patent income, citing confidentiality agreements with licensees.
Suing Samsung is a last resort, Alfalahi said, adding: "We are suing in the U.S. because it is the most important market with respect to intellectual property." He declined to say whether other companies had refused to license Ericsson patents.
Samsung did not immediately reply to a request for comment.
Ericsson asked the court for a jury trial and an injunction that Samsung and its partners refrain from further infringement of the patents. It wants Samsung to pay damages for the infringement and to agree to a licensing deal on FRAND terms.
The fact that Ericsson is demanding a sales ban is a negotiating tactic, and common practice in such cases, said John Strand, CEO of Strand Consult.
Ericsson hasn't been seen in court as much as other players in the industry like Apple and Samsung, said Strand. The same goes for companies such as Nokia and chip manufacturer Qualcomm, he said.
"The reason that you don't hear often about those companies involved in court cases is that they are sitting on the standard-essential patents," said Strand. "That is a fantastic bargaining deal."
Ericsson and Nokia are under heavy financial pressure, so they are looking to their patent portfolio to make money, said Strand. By starting lawsuits like this, they also can make the value of their patent portfolio more visible to their shareholders, he added.
"There are definitely going to be more lawsuits like this. I think we have just seen the top of the iceberg."
Loek is Amsterdam Correspondent and covers online privacy, intellectual property, open-source and online payment issues for the IDG News Service. Follow him on Twitter at @loekessers or email tips and comments to firstname.lastname@example.org