发明名称 |
UPLINK POWER CONTROL MESSAGE INDEXING IN WIRELESS OFDMA SYSTEMS |
摘要 |
<p>A method of power control message indexing is provided in a wireless Orthogonal Frequency Division Multiple Access (OFDMA) network. A base station configures fast feedback channels (FFBCHs) and mobile stations report downlink channel information via the configured FFBCHs. Based on the received channel information, the base station estimates uplink channel quality and detects any channel variation. In response to uplink channel variation, the base station delivers power offsets to adjust the transmit power levels of the mobile stations. In one advantageous aspect, the power control commands for mobile stations are aggregated and the indexing scheme of the power control commands is implicitly based on the configured FFBCHs. For example, if a FFBCH is located at a first location in an uplink frame, then a following power control command in response to the FFBCH is located at a second location in a downlink frame, the second location is located after the first location with a predefined fixed delay time.</p> |
申请公布号 |
WO2011097922(A1) |
申请公布日期 |
2011.08.18 |
申请号 |
WO2010CN79926 |
申请日期 |
2010.12.17 |
申请人 |
MEDIATEK INC.;CHANG, YU-HAO;CHEN, YIH-SHEN |
发明人 |
CHANG, YU-HAO;CHEN, YIH-SHEN |
分类号 |
H04W52/00 |
主分类号 |
H04W52/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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