Qualcomm Inc has decided not to split into separate chipmaking and technology licensing businesses, concluding a six-month strategic review instigated by hedge fund Jana Partners.<br />San Diego-based Qualcomm, the biggest maker of chips used in mobile phones, said on Tuesday its current structure offered unique strategic benefits that cannot be replicated.<br />Qualcomm, whose earnings have slumped by more than 40 percent in each of the last three quarters, said it had "a focused plan" in place that it believed would drive growth.<br />Chief Executive Steve Mollenkopf did not elaborate.<br />The company has also said all along that its existing structure allowed it to leverage relationships with Chinese customers, which are expanding quickly into other countries.