Giant steps in. Ikanos, which absorbed Globespan, Virata, Conexant and Centillium, is a crucial part of the history of DSL. In a flat DSL market, they've struggled for several years. Promised products for node scale vectoring and G.fast are not visible in the market although I understand they are far advanced. CPE chip sales have declined as Chinese chipmakers entered the market. A year ago, Dado Banatao's Tallwood VC firm and Alcatel bailed them out in the belief the new chips would find buyers. Time and money have run out and they've accepted the offer. Ikanos has been on the block for a while, with an asking price of $80-100M.
Qualcomm's entry surprised me because they don't offer complementary chips for cable and fiber. The deal was presumably inspired by Intel's purchase of Lantiq, creating a powerful combined offering of DSL, cable (formerly TI) and wireless (formerly Infineon) chips for home connections. Ikanos also sells Fusiv, a network processor for gateways.
LTE + DSL gateways are in modest deployment in Germany and could play a surprisingly important future role. LTE with realworld speeds of 50+megabits is deploying widely around the world. Many people believe spectrum limits LTE capacity so much that the telcos can't afford to use LTE bandwidth to supercharge DSL. That's probably true in midtown Manhattan but 95+% of the time LTE towers run far below capacity. This is especially true in rural areas, where DT intends to sell DSL + LTE in volume.