Recently, Ericsson, which is the global market leader among the mobile infrastructure manufactures, sued Samsung, which is the global market leader among the mobile phone manufactures, for the patent infringement. If Ericsson decides to sue mobile phone manufactures, it could be a problem because Ericsson does not produce the mobile phones in the US: Ericsson is a NPE for this kind of patent lawsuit!
TechIPm’s research for Ericsson’s LTE patent in USPTO shows that Ericsson holds 38 patents (33 issued patents, 5 published applications) directly related to LTE smartphone implementation in the current US market as of 3Q 2012. Among 33 patents, 10 patents are identified as patents for LTE baseband modem and 28 patents are identified as patents for LTE protocol SW.
Comparison of patent disclosures with 3GPP technical specifications shows that, among TS36 specifications, TS36.331 (RRC protocol specification) was the top followed by TS36.322 (RLC protocol specification) and, among key technologies, Radio Link Control was the top category that Ericsson’s LTE patents are distributed.
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