The lawsuit comes as Nokia struggles to mount a fightback against Apple in the fast-growing smartphone market as consumers shift from traditional handsets to phones that double as mini computers.

• 提起诉讼的同时，诺基亚正竭力在智能手机领域向苹果发起反击。随着消费者逐渐摒弃传统手机，转而选择可兼用作迷你电脑的通讯设备，智能手机已成为一个高速增长的市场。