Mobile phone maker Nokia has asked a US court to enforce Qualcomm's obligations in patent licensing, Nokia said.

"Nokia is asking the court to order Qualcomm to abide by its written contractual obligations in international standards setting organisations to license intellectual property essential to GSM and UMTS technology standards on fair, reasonable and non-discriminatory terms," Nokia said in a statement.

Nokia, the world's largest mobile phone maker, also said it was seeking a court order to affirm that Qualcomm "is not entitled to injunctive relief in relation to alleged infringement of patents declared essential to a standard."

Nokia and Qualcomm have had a long-standing disagreement over essential patents relating to mobile phone technologies. The two companies are in negotiations about extending technology license agreements.

"Qualcomm has filed three separate legal actions against Nokia in US Federal Court, a court in the United Kingdom and the US International Trade Commission where it has requested injunctions against Nokia," Nokia said.

Nokia also said it was asking the court in Delaware to enforce Qualcomm's obligation to negotiate royalties on fair, reasonable and non-discriminatory terms.

In July, Qualcomm said the US International Trade Commission was investigating whether Nokia engaged in unfair trading practices by importing and selling mobile phones that infringed on Qualcomm's patents.

At the time, Nokia said that the filing by Qualcomm was without merit.

Qualcomm is the dominant chip supplier for phones based on the CDMA standard, a wireless technology used mainly in the United States and parts of Asia. It has said Nokia products infringe its patents for GSM, a cellphone technology that is popular in Europe.

Nokia is one of six rivals that last year lodged an anti-competitiveness complaint with European regulators against Qualcomm's licensing practices. (Reuters)