Invention Grant
US09456423B2 Automated parameter adjustment to compensate self adjusting transmit power and sensitivity level at the node B
有权
自动参数调整,以补偿节点B的自调节发射功率和灵敏度级别
- Patent Title: Automated parameter adjustment to compensate self adjusting transmit power and sensitivity level at the node B
- Patent Title (中): 自动参数调整,以补偿节点B的自调节发射功率和灵敏度级别
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Application No.: US14307816Application Date: 2014-06-18
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Publication No.: US09456423B2Publication Date: 2016-09-27
- Inventor: Aziz Gholmieh , Farhad Meshkati , Mehmet Yavuz , Siddharth Mohan , Christophe Chevallier
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Jia J. Wu
- Main IPC: H04W52/24
- IPC: H04W52/24 ; H04W74/08 ; H04W52/14 ; H04W52/40

Abstract:
A small base node such as a Home Base Node (HNB), or femto cell, may reduce its transmit power in order to prevent co-channel or adjacent channel interference, or to limit its coverage area. Once the power is set, the HNB signal to a served Home User Equipment (HUE) its transmit Common Pilot Channel (CPICH) transmit power for accurate path loss estimation. When this power is outside of the permissible range, the HNB adjusts other parameters (such as Random Access Channel (RACH) constant value) to compensate for the error in signaled CPICH power, and thus compensate in that process the error in determining path loss. Similarly, if the uplink sensitivity is adjusted, to prevent interference, parameters would also be adjusted and signaled to the HUE to reflect the link imbalance.
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