UPDATE 1-Nokia could seek up to $1 bln for iPhones-analysts

* Apple faces paying out if it loses Nokia lawsuit

* Newcomers royalty rate around 15 pct of 3G phone price

* Rate clearly lower for 2G phones -analysts

* Most handset makers pay much less due to cross-licensing

* Ericsson says Apple licensing its patents (Adds details, quote, shares)

By Tarmo Virki, European technology correspondent

HELSINKI, Oct 23 (Reuters) - Apple (AAPL.O: Quote, Profile, Research) faces the possibility of having to pay Nokia (NOK1V.HE: Quote, Profile, Research) up to $1 billion for the technologies used in iPhones sold so far if it loses a lawsuit brought by Nokia, analysts said.

The world's top cellphone maker Nokia filed the suit in the United States on Thursday, saying Apple had infringed 10 patents in technologies like wireless data transfer, a key factor in the success of iPhone, and accusing Apple of trying to hitch a "free ride" on Nokia's technology investment. [ID:nLM664007]