3GPP Officials per TSG/WG
3GPP history of Officials for group: 3GPP RAN 4 ("R4")
The "elected" date is the date of the original election or of re-election. In the case of the Secretary, it is the date of appointment to this TSG or WG.
| Convenor | Elected / Re-elected | Term of office ended | Name | Organization | 3GPP OP | Remarks |
|---|---|---|---|---|---|---|
| 1998-12-07 | 1999-02-15 | BENN, Howard | Motorola Solutions UK Ltd. | ETSI | 0 | |
| 2005-03-11 | 2005-09-02 | BENN, Howard | Motorola Solutions UK Ltd. | ETSI | elected chairman of new RAN4 at #36 |
| Chair | Elected / Re-elected | Term of office ended | Name | Organization | 3GPP OP | Remarks |
|---|---|---|---|---|---|---|
| 2001-02-19 | 2005-03-11 | BENN, Howard | Motorola Solutions UK Ltd. | ETSI | elected at RAN4#2 15-19/02/99 to 2001/02/18 and re | |
| 2005-08-22 | 2007-08-22 | BENN, Howard | Motorola Solutions UK Ltd. | ETSI | re-elected at R4#36 | |
| 2007-08-21 | 2009-08-28 | NAKAMURA, Takaharu | Fujitsu Limited | ARIB | elected at RAN4#44 | |
| 2009-08-28 | 2011-08-27 | NAKAMURA, Takaharu | Fujitsu Limited | ARIB | re-elected at RAN4#52 | |
| 2011-08-28 | 2011-11-20 | ZHANG, Dawei | China Mobile Com. Corporation | CCSA | elected RAN4#60 | |
| 2011-11-20 | 2013-11-15 | SÄYNÄJÄKANGAS, Tuomo | Nokia Networks Oy | ETSI | elected at RAN4#61 | |
| 2013-11-05 | 2015-11-20 | SÄYNÄJÄKANGAS, Tuomo | Nokia Networks Oy | ETSI | re-elected at RAN4#69 | |
| 2015-11-20 | 2017-12-01 | ZHOU, Xutao | Samsung Electronics Co., Ltd | TTA | elected at RAN4#77 | |
| 2017-12-01 | 2019-11-22 | ZHOU, Xutao | Samsung Electronics Co., Ltd | TTA | re-elected at R4#85 (2nd term) | |
| 2019-11-23 | 2020-10-02 | CHEN, Xiang (Steven) | Futurewei | ETSI | elected at R4#93 | |
| 2020-10-02 | 2021-04-21 | CHEN, Xiang (Steven) | Apple (UK) Limited | ETSI | Elected 23.11.2019 but changed company 02.10.20 | |
| 2021-04-22 | 2023-04-21 | DAI, Xizeng | HuaWei Technologies Co., Ltd | CCSA | elected at RAN4#98-bis-e | |
| 2023-04-21 | (current) | DAI, Xizeng | HuaWei Technologies Co., Ltd | CCSA | re-elected at RAN4#106-bis-e (2nd term) |
| Vice Chair | Elected / Re-elected | Term of office ended | Name | Organization | 3GPP OP | Remarks |
|---|---|---|---|---|---|---|
| 1999-02-15 | 2001-02-19 | FUKUDA, Eisuke | ETSI | ETSI | elected at RAN4#2 15-19/02/99 | |
| 2001-02-19 | 2007-08-21 | NAKAMURA, Takaharu | Fujitsu Limited | ARIB | elected at RAN4#16; re-elected #36 | |
| 2005-08-22 | 2007-08-22 | NAKAMURA, Takaharu | Fujitsu Limited | ARIB | re-elected at R4#36 | |
| 2005-09-02 | 2007-08-22 | NG, Man Hung | Alcatel-Lucent Telecom Ltd | ETSI | elected at RAN4#16 | |
| 2007-08-22 | 2009-08-28 | FERNANDES, Edgar | Motorola Solutions UK Ltd. | ETSI | elected at RAN4#44 | |
| 2007-08-23 | 2009-08-28 | GRANT, Marc | AT&T | ATIS | elected at RAN4#44 | |
| 2009-08-28 | 2011-08-27 | FERNANDES, Edgar | Motorola Solutions UK Ltd. | ETSI | re-elected at RAN4#52 | |
| 2009-08-28 | 2010-06-23 | BERGLJUNG, Christian | ST-Ericsson SA | ETSI | elected at RAN4#52 - (23.06.10) Changed company fr | |
| 2010-06-23 | 2010-08-27 | BERGLJUNG, Christian | Ericsson LM | ETSI | Elected 28.08.2009 but changed company (23.06.2010 | |
| 2010-08-27 | 2011-08-27 | ZHANG, Dawei | China Mobile Com. Corporation | CCSA | Elected at RAN4#56 | |
| 2011-08-28 | 2013-08-23 | JI, Tingfang | Qualcomm Germany | ETSI | elected RAN4#60 | |
| 2011-10-14 | 2013-10-11 | CHEN, Xiang (Steven) | HuaWei Technologies Co., Ltd | ATIS | elected at RAN4#60bis | |
| 2013-08-24 | 2015-08-28 | JI, Tingfang | Qualcomm Incorporated | ATIS | elected at RAN4#68 | |
| 2013-10-11 | 2015-08-28 | CHEN, Xiang (Steven) | HuaWei Technologies Co., Ltd | CCSA | re-elected at RAN4#68bis | |
| 2015-08-28 | 2017-08-21 | DAI, Xizeng | HuaWei Technologies Co., Ltd | CCSA | elected at RAN4#76 | |
| 2015-08-28 | 2017-08-21 | UMEDA, Hiromasa | NTT DOCOMO INC.. | ARIB | elected at RAN4#76 | |
| 2017-08-21 | 2019-08-30 | UMEDA, Hiromasa | NTT DOCOMO INC.. | ARIB | re-elected at RAN4#84 | |
| 2017-08-21 | 2019-08-30 | DAI, Xizeng | HuaWei Technologies Co., Ltd | CCSA | re-elected at RAN4#84 | |
| 2019-08-31 | 2021-08-27 | CHERVYAKOV, Andrey | Intel | ATIS | elected at R4#92b | |
| 2019-08-31 | 2021-08-27 | QUI, Haijie | Samsung Electronics Co., Ltd | TTA | elected at R4#92b | |
| 2021-08-27 | 2023-08-25 | QUI, Haijie | Samsung Electronics Co., Ltd | TTA | re-elected at R4-100-e 2nd term | |
| 2021-08-27 | 2023-08-25 | CHERVYAKOV, Andrey | Intel | ATIS | re-elected at R4-100-e 2nd term | |
| 2023-08-25 | (current) | FONG, Gene | Qualcomm Incorporated | ATIS | Elected at R4#108 | |
| 2023-08-25 | (current) | YANG, Shan | China Telecom Corporation Ltd. | CCSA | Elected at R4#108 |
| Secretary | Elected / Re-elected | Term of office ended | Name | Organization | 3GPP OP | Remarks |
|---|---|---|---|---|---|---|
| 1998-12-07 | 1999-03-08 | SHARPE, Michael | (3GPP Support) | - | ||
| 1999-10-15 | 2000-08-31 | WILLIAMS, David Hugh | (3GPP Support) | - | ||
| 2000-08-31 | 2006-09-27 | GUTIERREZ MIGUELEZ, Cesar | (3GPP Support) | - | ||
| 2006-09-27 | 2007-09-17 | THOMASEN, Gert | (3GPP Support) | - | ||
| 2007-09-17 | 2009-11-01 | SESIA, Stefania | (3GPP Support) | - | ||
| 2009-11-01 | 2016-09-28 | TOUFIK, Issam | (3GPP Support) | - | ||
| 2016-09-28 | 2017-01-01 | KORHONEN, Juha | (3GPP Support) | - | ||
| 2016-11-22 | 2017-03-01 | MEREDITH, John M | (3GPP Support) | - | For NR ad hoc mtg 2017-01 only | |
| 2017-01-01 | 2019-12-31 | OH, Kyoungseok | (3GPP Support) | - | ||
| 2020-01-01 | 2021-02-23 | SUNELL, Kai-Erik | (3GPP Support) | - | ||
| 2020-01-22 | 2020-06-01 | JO, Young Ik | (3GPP Support) | - | ||
| 2021-02-23 | (current) | TAYLOR, Carolyn | (3GPP Support) | - | ||
| 2024-09-23 | (current) | LIAN, Jin | (3GPP Support) | - |
Click here for current officials.