- 专利标题: Preamble based uplink power control for LTE
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申请号: US13117980申请日: 2011-05-27
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公开(公告)号: US08559889B2公开(公告)日: 2013-10-15
- 发明人: Durga Prasad Malladi , Juan Montojo
- 申请人: Durga Prasad Malladi , Juan Montojo
- 申请人地址: US AZ San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US AZ San Diego
- 代理商 Anthony R. Morris
- 主分类号: H04B1/00
- IPC分类号: H04B1/00
摘要:
Systems and methodologies are described that facilitate utilizing power control preambles with closed loop power control techniques in a wireless communication environment. An uplink grant can be transferred over a downlink (e.g., a first uplink grant after uplink inactivity), and a power control preamble can be sent over an uplink in response to the uplink grant. According to an example, transmission of the power control preamble can be explicitly scheduled and/or implicitly scheduled. The power control preamble can be transmitted at a power level determined by an access terminal utilizing an open loop power control mechanism. A base station can analyze the power control preamble and generate a power control command based thereupon to correct the power level employed by the access terminal. The access terminal can thereafter utilize the power control command to adjust the power level for uplink data transmission.
公开/授权文献
- US20110294530A1 PREAMBLE BASED UPLINK POWER CONTROL FOR LTE 公开/授权日:2011-12-01
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