Myoung Hyun Choi

US Patent:

7509128, Mar 24, 2009

Filed:

Jan 18, 2005

Appl. No.:

11/037386

Inventors:

Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Kyu Yoo - Richardson TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04B 7/216

US Classification:

455450, 455466

Abstract:

A system, method, and computer readable medium for a data call setup comprises receiving an origination message by a radio call control (RCC) and by a main call control (MCC), receiving an assignment request message by the MCC and by the RCC, and receiving a traffic channel assignment message by a channel element control (CEC) and by the MCC.

US Patent:

7647054, Jan 12, 2010

Filed:

Jan 18, 2005

Appl. No.:

11/037813

Inventors:

Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Kyu Yoo - Richardson TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

G06F 15/16

US Classification:

455450, 4554122

Abstract:

A system, method, and computer readable medium for a mobile origination comprises receiving an origination request message by a main call control (MCC) from a radio call control (RCC), receiving an assignment request message by the RCC from the MCC, receiving a traffic channel assign message by a channel element control (CEC) and by the MCC from the RCC, receiving a call setup message by a selector distribution unit (SDU) from the MCC, and receiving a link active message by the CEC from the SDU.

US Patent:

7835752, Nov 16, 2010

Filed:

Mar 4, 2009

Appl. No.:

12/397669

Inventors:

Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Kyu Yoo - Richardon TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04B 7/216

US Classification:

455450, 455466

Abstract:

A system, method, and computer readable medium for a data call setup comprises receiving an origination message by a radio call control (RCC) and by a main call control (MCC), receiving an assignment request message by the MCC and by the RCC, and receiving a traffic channel assignment message by a channel element control (CEC) and by the MCC.

US Patent:

8019348, Sep 13, 2011

Filed:

Jan 18, 2005

Appl. No.:

11/037814

Inventors:

Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Kyu Yoo - Richardson TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04W 36/00

US Classification:

455442, 455422, 455420, 455453, 455450, 455561

Abstract:

A system, method, and computer readable medium for a softer handoff comprises receiving a Pilot Strength Measurement Message (PSMM) to request a handoff by a selector distribution unit (SDU), receiving a softer handoff request message by a channel element control (CEC), receiving a softer handoff request message by a radio call control (RCC), receiving a traffic channel assignment message by the CEC, and receiving an indication of an addition of a new sector for the softer handoff by the SDU.

US Patent:

8060143, Nov 15, 2011

Filed:

Jan 18, 2005

Appl. No.:

11/037063

Inventors:

Wonjun Cho - Lantana TX, US
Jeom Sik Kim - Coppell TX, US
Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Jefferson K. Kim - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Hong Park - Plano TX, US
Seong Ju Seo - Allen TX, US
Jae Kyu Yoo - Richardson TX, US
Jake J. Han - Coppell TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04B 1/38

US Classification:

455560, 455561, 370352, 370401

Abstract:

A combined base station controller () and base transceiver station () comprises a selector distribution unit (SDU, ), a main call control (MCC, ) coupled to the SDU, a radio call control (RCC, ) coupled to the MCC, and a channel element control (CEC, ) coupled to the RCC.

US Patent:

8090370, Jan 3, 2012

Filed:

Jan 18, 2005

Appl. No.:

11/037388

Inventors:

Myoung Chul Choi - Plano TX, US
Jae Hong Park - Plano TX, US
Hyunyung Cha - Plano TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04W 4/00

US Classification:

4554351, 455433, 455436, 455458, 4554352, 370331, 370328, 370335, 370466, 709202, 709213, 37920101, 37920702, 37926502

Abstract:

A system, method, and computer readable medium for managing an availability of a call agent, comprising acquiring a session identification by a basestation (BS) and a call agent (CA), wherein the BS is coupled to the CA, if the CA's state is changed from an active state to a standby state, requesting a new connection with the BS; and after the new connection is established between the CA and the BS, sending another session identification from the CA to the BS.

US Patent:

8175647, May 8, 2012

Filed:

Sep 27, 2011

Appl. No.:

13/245981

Inventors:

Wonjun Cho - Lantana TX, US
Jeom Sik Kim - Coppell TX, US
Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Jefferson K. Kim - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Hong Park - Plano TX, US
Seong Ju Seo - Allen TX, US
Jae Kyu Yoo - Richardson TX, US
Jake J. Han - Coppell TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04B 1/38

US Classification:

455560, 455561, 370352, 370401

Abstract:

A combined base station controller () and base transceiver station () comprises a selector distribution unit (SDU, ), a main call control (MCC, ) coupled to the SDU, a radio call control (RCC, ) coupled to the MCC, and a channel element control (CEC, ) coupled to the RCC.

US Patent:

8275416, Sep 25, 2012

Filed:

May 3, 2012

Appl. No.:

13/463098

Inventors:

Wonjun Cho - Lantana TX, US
Jeom Sik Kim - Coppell TX, US
Myoung Chul Choi - Plano TX, US
Hyunyung Cha - Plano TX, US
Jefferson K. Kim - Plano TX, US
Hyeon Bong Park - Plano TX, US
Jae Hong Park - Plano TX, US
Seong Ju Seo - Allen TX, US
Jae Kyu Yoo - Richardson TX, US
Jake J. Han - Coppell TX, US

Assignee:

Airwalk Communications, Inc. - Richardson TX

International Classification:

H04B 1/38

US Classification:

455560, 455561, 370352, 370401

Abstract:

A combined base station controller () and base transceiver station () comprises a selector distribution unit (SDU, ), a main call control (MCC, ) coupled to the SDU, a radio call control (RCC, ) coupled to the MCC, and a channel element control (CEC, ) coupled to the RCC.