1. 0 软交换应用的探讨 赵慧玲 2004 年 05 月 Dynamically Power Management On BTS or Carriers By Caiqin Zhu(Catherine Zhu) zhucq@ctbri.com.cn China Telecom Jan. 2011 © 2011 3GPP2 China Telecom grants a free, irrevocable license to 3GPP2 and its Organizational Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner's name any Organizational Partner's standards publication even though it may include all or portions of this contribution; and at the Organizational Partner's sole discretion to permit others to reproduce in whole or in part such contribution or the resulting Organizational Partner's standards publication. China Telecom is also willing to grant licenses under such contributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing an Organizational Partner's standard which incorporates this contribution. This document has been prepared by China Telecom to assist the development of specifications by 3GPP2. It is proposed to the Committee as a basis for discussion and is not to be construed as a binding proposal on China Telecom. China Telecom specifically reserves the right to amend or modify the material contained herein and to any intellectual property of China Telecom other than provided in the copyright statement above. Recommendation: FYI

2. 1 Background The emission reduction targets under the Kyoto Protocol was maintained in recent Cancun Ministerial Conference. -8% for the European Union -7% for the United States -6% for Japan and 0% for Russia The treaty permits emission increases of 8% for Australia and 10% for Iceland Telecommunication field consumed more than 29 billion Kilowatt hour of electricity in 2009, and Base Station consumption occupied more than 45% of it in China. China Telecom already announced Energy Saving Operation Guide Book in 2008 to be a green environment protector

3. 2 1. The traffic volume in some sites/carriers varied during the time especially at CBD, residential area, shopping centers, and etc. depended upon the flowing of Human Beings. 2. The special events will trigger abnormal traffic volume in some sites/carriers at arenas, stadium, and exhibition areas. Question ： How do we manage the Energy Saving Mode of the Network in order to avoid the waste of energy? Traffic Migration Phenomena

4. 3 Coverage Compensation Technology Study Requirement Minimized the impact of coverage, dynamically turn on/off the BTS/carriers on demand. This feature should be supported by both 1x and HRPD network.

5. 4