Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE49357 | IMS reregistration method and system therefor | Han Na Lim, Tae Sun Yeoum, Eun-Hui Bae, Sung-Ho Choi | 2023-01-03 |
| 10091686 | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system | Soeng-Hun Kim, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde | 2018-10-02 |
| 9955394 | Method and apparatus for performing handover between core network entities in a packet-switched network | Eun-Hui Bae, Sung-Ho Choi, Han Na Lim | 2018-04-24 |
| 9729223 | Method and apparatus for transmitting and receiving channel quality information in a wireless communication system | Kyeong-In Jeong, Soeng-Hun Kim, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde | 2017-08-08 |
| 9232444 | Method and apparatus for performing handover between core network entities in a packet-switched network | Eun-Hui Bae, Sung-Ho Choi, Han Na Lim | 2016-01-05 |
| 9002293 | Method and apparatus for transmitting and receiving channel quality information in a wireless communication system | Kyeong-In Jeong, Soeng-Hun Kim, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde | 2015-04-07 |
| 8910271 | System and method for handover between interworking WLAN and EUTRAN access systems | Rajavelsamy Rajadurai, Venkateswar Jeedigunta, Rahul Vaidya, Sung-Ho Choi | 2014-12-09 |
| 8681625 | Method and apparatus for controlling rate of voice service in a mobile communication system supporting voice service via packet network | Soeng-Hun Kim, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde, No-Jun Kwak +1 more | 2014-03-25 |
| 8634400 | Method and apparatus for transmitting and receiving status report comprising received status of packet data in a mobile communication system | Soeng-Hun Kim, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde | 2014-01-21 |
| 8582566 | Method and system of forwarding capability information of user equipment in internet protocol multimedia subsystem network | Eun-Hui Bae, Sung-Ho Choi, Tae Sun Yeoum, Han Na Lim | 2013-11-12 |
| 8565772 | Handover apparatus and method in a heterogeneous wireless communication system | Eun-Hui Bae, Sung-Ho Choi, Tae Sun Yeoum, Han Na Lim, Jai-Yong Lee +2 more | 2013-10-22 |
| 8462742 | System and method for optimizing authentication procedure during inter access system handovers | Rajavelsamy Rajadurai, Jedigunta Venkateshwar | 2013-06-11 |
| 8335197 | Method and apparatus for transmitting SIP data of idle mode UE in a mobile communication system | Kyeong-In Jeong, Himke Van Der Velde, Sung-Ho Choi, Soeng-Hun Kim, No-Jun Kwak +1 more | 2012-12-18 |
| 8325708 | Method and apparatus for interworking voice and multimedia services between CSI terminal and IMS terminal | Han Na Lim, Sung-Ho Choi, Eun-Hui Bae, Tae Sun Yeoum | 2012-12-04 |
| 8260297 | Method and apparatus for performing uplink timing synchronization procedure upon handover in a mobile communication system | Kyeong-In Jeong, Sung-Ho Choi, Ju-Ho Lee, Gert Jan Van Lieshout, Himke Van Dervelde | 2012-09-04 |
| 8244877 | Method and system for processing a control message in an internet protocol-based mobile communication system supporting a multimedia service | Tae Sun Yeoum, Han Na Lim, Joon Ho Jung | 2012-08-14 |
| 8116775 | System and method of providing user equipment initiated and assisted backward handover in heterogeneous wireless networks | Sung-Ho Choi, Rajavelsamy Rajadurai | 2012-02-14 |
| 8112087 | Method and apparatus for setting up radio resource control connection | Kyeong-In Jeong, Gert Jan Van Lieshout, Himke Van Der Velde, Sung-Ho Choi | 2012-02-07 |
| 8107416 | Method and apparatus for radio connection setup in a mobile communication system | Kyeong-In Jeong, Sung-Ho Choi, Gert Jan Van Lieshout, Himke Van Der Velde | 2012-01-31 |
| 8031672 | System and method for providing secure mobility and internet protocol security related services to a mobile node roaming in a foreign network | Holur Balaji, {acute over (V)}aidya Rahul, RAJADURAI Rajavelsamy, Jeedigunta Venkateswar | 2011-10-04 |
| 8031692 | Method for maintaining uplink timing synchronization in a mobile communication system and user equipment apparatus for the same | Kyeong-In Jeong, Ju-Ho Lee, Yong-Jun Kwak, Sung-Ho Choi, Gert Jan Van Lieshout +1 more | 2011-10-04 |
| 8018858 | IMS reregistration method and system therefor | Han Na Lim, Tae Sun Yeoum, Eun-Hui Bae, Sung-Ho Choi | 2011-09-13 |
| 7965704 | Method and apparatus for handling IMS terminal's call request including request for real-time service received over IMS domain by CSI terminal | Han Na Lim, Tae Sun Yeoum, Sung-Ho Choi, Chunying Sun, Craig Bishop | 2011-06-21 |
| 7962138 | Method and apparatus for managing routing area in mobile communication system | Eun-Hui Bae, Sung-Ho Choi, Beom-Sik Bae, No-Jun Kwak, Gert Jan Van Lieshout | 2011-06-14 |
| 7953042 | Handover method and apparatus between different systems | No-Jun Kwak, Sung-Ho Choi, Soeng-Hun Kim, Kyeong-In Jeong, Eun-Hui Bae +1 more | 2011-05-31 |