US 9,813,550 B2
Lawful interception method and apparatus of D2D communication-capable terminal
Kyungkyu Kim, Suwon-si (KR); Youngbin Chang, Anyang-si (KR); Anil Agiwal, Suwon-si (KR); Seunghoon Park, Seoul (KR); and Sangkyu Baek, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do (KR)
Filed on Jul. 8, 2014, as Appl. No. 14/325,791.
Claims priority of application No. 10-2013-0079932 (KR), filed on Jul. 8, 2013; application No. 10-2014-0011547 (KR), filed on Jan. 29, 2014; and application No. 10-2014-0058636 (KR), filed on May 15, 2014.
Prior Publication US 2015/0009864 A1, Jan. 8, 2015
Int. Cl. H04M 3/22 (2006.01); H04L 29/06 (2006.01); H04W 12/02 (2009.01); H04M 3/42 (2006.01); H04W 4/02 (2009.01)
CPC H04M 3/2281 (2013.01) [H04L 63/306 (2013.01); H04W 12/02 (2013.01); H04M 3/42 (2013.01); H04W 4/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A lawful interception (LI) method of a terminal, the method comprising:
communicating with a peer terminal through a device-to-device (D2D) communication:
identifying usage information exchanged with the peer terminal; and
transmitting, from the terminal to a proximity-based services (ProSe) function, an (LI) report including the usage information directly,
wherein the usage information is transmitted from the ProSe function to a law enforcement maintenance facility (LEMF) after the terminal transmits the (LI) report to the ProSe function directly.