Motorola (NYSE: MOT) said it is buying a division of privately held RadioFrame Networks, which makes network equipment for Sprint’s Nextel division. The iDen base station technology will become part of its Motorola’s Home & Networks Mobility business, which was rumored to be for sale. Motorola did not disclose terms of the deal. Release.

Redmond, Wash.-based RadioFrame Networks also makes femtocells, which carriers can give to subscribers to boost cellular coverage at home or in the office using a broadband connection.