US 10,893,556 B2
Method and apparatus for supporting local IP access in a femto cell of a wireless communication system
Song Yeon Cho, Seoul (KR); Chae Gwon Lim, Seoul (KR); Sung Oh Choi, Suwon-si (KR); and Beom Sik Bae, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd
Filed by Song Yeon Cho, Seoul (KR); Chae Gwon Lim, Seoul (KR); Sung Oh Choi, Suwon-si (KR); and Beom Sik Bae, Gyeonggi-do (KR)
Filed on Apr. 29, 2010, as Appl. No. 12/770,322.
Claims priority of application No. 10-2009-0038428 (KR), filed on Apr. 30, 2009; application No. 10-2009-0038514 (KR), filed on Apr. 30, 2009; and application No. 10-2009-0098994 (KR), filed on Oct. 16, 2009.
Prior Publication US 2010/0278108 A1, Nov. 4, 2010
Int. Cl. H04L 12/46 (2006.01); H04W 76/12 (2018.01); H04L 29/12 (2006.01); H04W 88/18 (2009.01); H04W 84/04 (2009.01); H04W 8/08 (2009.01); H04W 88/16 (2009.01)
CPC H04W 76/12 (2018.02) [H04L 12/4633 (2013.01); H04L 29/12735 (2013.01); H04L 61/2592 (2013.01); H04W 8/082 (2013.01); H04W 84/045 (2013.01); H04W 88/16 (2013.01); H04W 88/182 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for supporting local internet protocol access (LIPA) at a home enhanced node base station (HeNB) collocated with a local gateway (LGW) in a wireless communication system, the method comprising:
receiving, from a terminal, a first request message; transmitting, to a mobility management entity (MME), a first control message including an address of the LGW via an S 1-MME interface for the terminal, wherein the address of the LGW is used to select a packet data network gateway (PDN GW) by the MME;
receiving, from the MME, a second control message in response to the first control message, the second control message including an identification (ID) set equal to a tunnel endpoint identifier (TEID) of the selected PDN GW, wherein the tunnel endpoint identifier (TEID) is for an S5 tunnel of a general packet radio service (GPRS) tunnel protocol (GTP) interface;
establishing a direct path between the HeNB and the LGW based on the ID set equal to the TEID of the selected PDN GW; and
forwarding an uplink data packet received from the terminal to the LGW via the direct path,
wherein a request message transmitted from the MME to a serving gateway (SGW) comprises the address of the LGW.